diff --git a/core/api/system-current.txt b/core/api/system-current.txt
index 4a0d771..d3850a3 100644
--- a/core/api/system-current.txt
+++ b/core/api/system-current.txt
@@ -238,7 +238,7 @@
     field public static final String PROVIDE_TRUST_AGENT = "android.permission.PROVIDE_TRUST_AGENT";
     field public static final String PROVISION_DEMO_DEVICE = "android.permission.PROVISION_DEMO_DEVICE";
     field public static final String QUERY_ADMIN_POLICY = "android.permission.QUERY_ADMIN_POLICY";
-    field public static final String QUERY_TIME_ZONE_RULES = "android.permission.QUERY_TIME_ZONE_RULES";
+    field @Deprecated public static final String QUERY_TIME_ZONE_RULES = "android.permission.QUERY_TIME_ZONE_RULES";
     field public static final String QUERY_USERS = "android.permission.QUERY_USERS";
     field public static final String RADIO_SCAN_WITHOUT_LOCATION = "android.permission.RADIO_SCAN_WITHOUT_LOCATION";
     field public static final String READ_ACTIVE_EMERGENCY_SESSION = "android.permission.READ_ACTIVE_EMERGENCY_SESSION";
@@ -340,7 +340,7 @@
     field public static final String UPDATE_DOMAIN_VERIFICATION_USER_SELECTION = "android.permission.UPDATE_DOMAIN_VERIFICATION_USER_SELECTION";
     field public static final String UPDATE_FONTS = "android.permission.UPDATE_FONTS";
     field public static final String UPDATE_LOCK = "android.permission.UPDATE_LOCK";
-    field public static final String UPDATE_TIME_ZONE_RULES = "android.permission.UPDATE_TIME_ZONE_RULES";
+    field @Deprecated public static final String UPDATE_TIME_ZONE_RULES = "android.permission.UPDATE_TIME_ZONE_RULES";
     field public static final String UPGRADE_RUNTIME_PERMISSIONS = "android.permission.UPGRADE_RUNTIME_PERMISSIONS";
     field public static final String USER_ACTIVITY = "android.permission.USER_ACTIVITY";
     field public static final String USE_COLORIZED_NOTIFICATIONS = "android.permission.USE_COLORIZED_NOTIFICATIONS";
diff --git a/core/java/android/app/SystemServiceRegistry.java b/core/java/android/app/SystemServiceRegistry.java
index 8bbddbf..12f72c2 100644
--- a/core/java/android/app/SystemServiceRegistry.java
+++ b/core/java/android/app/SystemServiceRegistry.java
@@ -44,7 +44,6 @@
 import android.app.time.TimeManager;
 import android.app.timedetector.TimeDetector;
 import android.app.timedetector.TimeDetectorImpl;
-import android.app.timezone.RulesManager;
 import android.app.timezonedetector.TimeZoneDetector;
 import android.app.timezonedetector.TimeZoneDetectorImpl;
 import android.app.trust.TrustManager;
@@ -1267,13 +1266,6 @@
             }
         });
 
-        registerService(Context.TIME_ZONE_RULES_MANAGER_SERVICE, RulesManager.class,
-                new CachedServiceFetcher<RulesManager>() {
-            @Override
-            public RulesManager createService(ContextImpl ctx) {
-                return new RulesManager(ctx.getOuterContext());
-            }});
-
         registerService(Context.CROSS_PROFILE_APPS_SERVICE, CrossProfileApps.class,
                 new CachedServiceFetcher<CrossProfileApps>() {
                     @Override
diff --git a/core/java/android/app/timezone/Callback.java b/core/java/android/app/timezone/Callback.java
deleted file mode 100644
index e3840be..0000000
--- a/core/java/android/app/timezone/Callback.java
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.app.timezone;
-
-import android.annotation.IntDef;
-
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-
-/**
- * Callback interface for receiving information about an async time zone operation.
- * The methods will be called on your application's main thread.
- *
- * @hide
- */
-public abstract class Callback {
-
-    @Retention(RetentionPolicy.SOURCE)
-    @IntDef(prefix = { "SUCCESS", "ERROR_" }, value = {
-            SUCCESS,
-            ERROR_UNKNOWN_FAILURE,
-            ERROR_INSTALL_BAD_DISTRO_STRUCTURE,
-            ERROR_INSTALL_BAD_DISTRO_FORMAT_VERSION,
-            ERROR_INSTALL_RULES_TOO_OLD,
-            ERROR_INSTALL_VALIDATION_ERROR
-    })
-    public @interface AsyncResultCode {}
-
-    /**
-     * Indicates that an operation succeeded.
-     */
-    public static final int SUCCESS = 0;
-
-    /**
-     * Indicates an install / uninstall did not fully succeed for an unknown reason.
-     */
-    public static final int ERROR_UNKNOWN_FAILURE = 1;
-
-    /**
-     * Indicates an install failed because of a structural issue with the provided distro,
-     * e.g. it wasn't in the right format or the contents were structured incorrectly.
-     */
-    public static final int ERROR_INSTALL_BAD_DISTRO_STRUCTURE = 2;
-
-    /**
-     * Indicates an install failed because of a versioning issue with the provided distro,
-     * e.g. it was created for a different version of Android.
-     */
-    public static final int ERROR_INSTALL_BAD_DISTRO_FORMAT_VERSION = 3;
-
-    /**
-     * Indicates an install failed because the rules provided are too old for the device,
-     * e.g. the Android device shipped with a newer rules version.
-     */
-    public static final int ERROR_INSTALL_RULES_TOO_OLD = 4;
-
-    /**
-     * Indicates an install failed because the distro contents failed validation.
-     */
-    public static final int ERROR_INSTALL_VALIDATION_ERROR = 5;
-
-    /**
-     * Reports the result of an async time zone operation.
-     */
-    public abstract void onFinished(@AsyncResultCode int status);
-}
diff --git a/core/java/android/app/timezone/DistroFormatVersion.java b/core/java/android/app/timezone/DistroFormatVersion.java
deleted file mode 100644
index 13ecaf5..0000000
--- a/core/java/android/app/timezone/DistroFormatVersion.java
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.app.timezone;
-
-import android.annotation.Nullable;
-import android.os.Parcel;
-import android.os.Parcelable;
-
-/**
- * Versioning information about a distro's format or a device's supported format.
- *
- * <p>The following properties are included:
- * <dl>
- *     <dt>majorVersion</dt>
- *     <dd>the major distro format version. Major versions differences are not compatible - e.g.
- *     2 is not compatible with 1 or 3.</dd>
- *     <dt>minorVersion</dt>
- *     <dd>the minor distro format version. Minor versions should be backwards compatible iff the
- *     major versions match exactly, i.e. version 2.2 will be compatible with 2.1 devices but not
- *     2.3 devices.</dd>
- * </dl>
- *
- * @hide
- */
-public final class DistroFormatVersion implements Parcelable {
-
-    private final int mMajorVersion;
-    private final int mMinorVersion;
-
-    public DistroFormatVersion(int majorVersion, int minorVersion) {
-        mMajorVersion = Utils.validateVersion("major", majorVersion);
-        mMinorVersion = Utils.validateVersion("minor", minorVersion);
-    }
-
-    public static final @android.annotation.NonNull Creator<DistroFormatVersion> CREATOR = new Creator<DistroFormatVersion>() {
-        public DistroFormatVersion createFromParcel(Parcel in) {
-            int majorVersion = in.readInt();
-            int minorVersion = in.readInt();
-            return new DistroFormatVersion(majorVersion, minorVersion);
-        }
-
-        public DistroFormatVersion[] newArray(int size) {
-            return new DistroFormatVersion[size];
-        }
-    };
-
-    public int getMajorVersion() {
-        return mMajorVersion;
-    }
-
-    public int getMinorVersion() {
-        return mMinorVersion;
-    }
-
-    @Override
-    public int describeContents() {
-        return 0;
-    }
-
-    @Override
-    public void writeToParcel(Parcel out, int flags) {
-        out.writeInt(mMajorVersion);
-        out.writeInt(mMinorVersion);
-    }
-
-    /**
-     * If this object describes a device's supported version and the parameter describes a distro's
-     * version, this method returns whether the device would accept the distro.
-     */
-    public boolean supports(DistroFormatVersion distroFormatVersion) {
-        return mMajorVersion == distroFormatVersion.mMajorVersion
-                && mMinorVersion <= distroFormatVersion.mMinorVersion;
-    }
-
-    @Override
-    public boolean equals(@Nullable Object o) {
-        if (this == o) {
-            return true;
-        }
-        if (o == null || getClass() != o.getClass()) {
-            return false;
-        }
-
-        DistroFormatVersion that = (DistroFormatVersion) o;
-
-        if (mMajorVersion != that.mMajorVersion) {
-            return false;
-        }
-        return mMinorVersion == that.mMinorVersion;
-    }
-
-    @Override
-    public int hashCode() {
-        int result = mMajorVersion;
-        result = 31 * result + mMinorVersion;
-        return result;
-    }
-
-    @Override
-    public String toString() {
-        return "DistroFormatVersion{"
-                + "mMajorVersion=" + mMajorVersion
-                + ", mMinorVersion=" + mMinorVersion
-                + '}';
-    }
-}
diff --git a/core/java/android/app/timezone/DistroRulesVersion.java b/core/java/android/app/timezone/DistroRulesVersion.java
deleted file mode 100644
index 54937b8..0000000
--- a/core/java/android/app/timezone/DistroRulesVersion.java
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.app.timezone;
-
-import static android.app.timezone.Utils.validateRulesVersion;
-import static android.app.timezone.Utils.validateVersion;
-
-import android.annotation.Nullable;
-import android.os.Parcel;
-import android.os.Parcelable;
-
-/**
- * Versioning information about a set of time zone rules.
- *
- * <p>The following properties are included:
- * <dl>
- *     <dt>rulesVersion</dt>
- *     <dd>the IANA rules version. e.g. "2017a"</dd>
- *     <dt>revision</dt>
- *     <dd>the revision for the rules. Allows there to be several revisions for a given IANA rules
- *     release. Numerically higher is newer.</dd>
- * </dl>
- *
- * @hide
- */
-public final class DistroRulesVersion implements Parcelable {
-
-    private final String mRulesVersion;
-    private final int mRevision;
-
-    public DistroRulesVersion(String rulesVersion, int revision) {
-        mRulesVersion = validateRulesVersion("rulesVersion", rulesVersion);
-        mRevision = validateVersion("revision", revision);
-    }
-
-    public static final @android.annotation.NonNull Creator<DistroRulesVersion> CREATOR = new Creator<DistroRulesVersion>() {
-        public DistroRulesVersion createFromParcel(Parcel in) {
-            String rulesVersion = in.readString();
-            int revision = in.readInt();
-            return new DistroRulesVersion(rulesVersion, revision);
-        }
-
-        public DistroRulesVersion[] newArray(int size) {
-            return new DistroRulesVersion[size];
-        }
-    };
-
-    public String getRulesVersion() {
-        return mRulesVersion;
-    }
-
-    public int getRevision() {
-        return mRevision;
-    }
-
-    /**
-     * Returns true if this DistroRulesVersion is older than the one supplied. It returns false if
-     * it is the same or newer. This method compares the {@code rulesVersion} and the
-     * {@code revision}.
-     */
-    public boolean isOlderThan(DistroRulesVersion distroRulesVersion) {
-        int rulesComparison = mRulesVersion.compareTo(distroRulesVersion.mRulesVersion);
-        if (rulesComparison < 0) {
-            return true;
-        }
-        if (rulesComparison > 0) {
-            return false;
-        }
-        return mRevision < distroRulesVersion.mRevision;
-    }
-
-    @Override
-    public int describeContents() {
-        return 0;
-    }
-
-    @Override
-    public void writeToParcel(Parcel out, int flags) {
-        out.writeString(mRulesVersion);
-        out.writeInt(mRevision);
-    }
-
-    @Override
-    public boolean equals(@Nullable Object o) {
-        if (this == o) {
-            return true;
-        }
-        if (o == null || getClass() != o.getClass()) {
-            return false;
-        }
-
-        DistroRulesVersion that = (DistroRulesVersion) o;
-
-        if (mRevision != that.mRevision) {
-            return false;
-        }
-        return mRulesVersion.equals(that.mRulesVersion);
-    }
-
-    @Override
-    public int hashCode() {
-        int result = mRulesVersion.hashCode();
-        result = 31 * result + mRevision;
-        return result;
-    }
-
-    @Override
-    public String toString() {
-        return "DistroRulesVersion{"
-                + "mRulesVersion='" + mRulesVersion + '\''
-                + ", mRevision='" + mRevision + '\''
-                + '}';
-    }
-
-    public String toDumpString() {
-        return mRulesVersion + "," + mRevision;
-    }
-}
diff --git a/core/java/android/app/timezone/ICallback.aidl b/core/java/android/app/timezone/ICallback.aidl
deleted file mode 100644
index 519ef1a..0000000
--- a/core/java/android/app/timezone/ICallback.aidl
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.app.timezone;
-
-/**
- * Callback interface for a timezone updater to receive information about the success or failure of
- * an installation/uninstallation attempt.
- *
- * {@hide}
- */
-oneway interface ICallback {
-    void onFinished(int error);
-}
\ No newline at end of file
diff --git a/core/java/android/app/timezone/IRulesManager.aidl b/core/java/android/app/timezone/IRulesManager.aidl
deleted file mode 100644
index 40f3fd2..0000000
--- a/core/java/android/app/timezone/IRulesManager.aidl
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.app.timezone;
-
-import android.app.timezone.ICallback;
-import android.app.timezone.RulesState;
-import android.os.ParcelFileDescriptor;
-
- /**
-  * Interface to the TimeZone Rules Manager Service.
-  *
-  * <p>This interface is only intended for system apps to call. They should use the
-  * {@link android.app.timezone.RulesManager} class rather than going through this
-  * Binder interface directly. See {@link android.app.timezone.RulesManager} for more complete
-  * documentation.
-  *
-  * {@hide}
-  */
-interface IRulesManager {
-
-    /**
-     * Returns information about the current time zone rules state such as the IANA version of
-     * the system and any currently installed distro. This method is intended to allow clients to
-     * determine if the current state can be improved; for example by passing the information to a
-     * server that may provide a new distro for download.
-     */
-    RulesState getRulesState();
-
-    /**
-     * Requests installation of the supplied distro. The distro must have been checked for integrity
-     * by the caller or have been received via a trusted mechanism.
-     *
-     * @param distroFileDescriptor the file descriptor for the distro
-     * @param checkToken an optional token provided if the install was triggered in response to a
-     *     {@link RulesUpdaterContract#ACTION_TRIGGER_RULES_UPDATE_CHECK} intent
-     * @param callback the {@link ICallback} to receive callbacks related to the
-     *     installation
-     * @return zero if the installation will be attempted; nonzero on error
-     */
-    int requestInstall(in ParcelFileDescriptor distroFileDescriptor, in byte[] checkToken,
-            ICallback callback);
-
-    /**
-     * Requests uninstallation of the currently installed distro (leaving the device with no
-     * distro installed).
-     *
-     * @param checkToken an optional token provided if the uninstall was triggered in response to a
-     *     {@link RulesUpdaterContract#ACTION_TRIGGER_RULES_UPDATE_CHECK} intent
-     * @param callback the {@link ICallback} to receive callbacks related to the
-     *     uninstall
-     * @return zero if the uninstallation will be attempted; nonzero on error
-     */
-    int requestUninstall(in byte[] checkToken, ICallback callback);
-
-    /**
-     * Requests the system does not modify the currently installed time zone distro, if any. This
-     * method records the fact that a time zone check operation triggered by the system is now
-     * complete and there was nothing to do. The token passed should be the one presented when the
-     * check was triggered.
-     *
-     * <p>Note: Passing {@code success == false} may result in more checks being triggered. Clients
-     * should be careful not to pass false if the failure is unlikely to resolve by itself.
-     *
-     * @param checkToken an optional token provided if the install was triggered in response to a
-     *     {@link RulesUpdaterContract#ACTION_TRIGGER_RULES_UPDATE_CHECK} intent
-     * @param success true if the check was successful, false if it was not successful but may
-     *     succeed if it is retried
-     */
-    void requestNothing(in byte[] token, boolean success);
-}
diff --git a/core/java/android/app/timezone/OWNERS b/core/java/android/app/timezone/OWNERS
deleted file mode 100644
index 04d78f2..0000000
--- a/core/java/android/app/timezone/OWNERS
+++ /dev/null
@@ -1,4 +0,0 @@
-# Bug component: 24949
-# Internal APIs related to APK-based time zone rule updates.
-# Deprecated, deletion tracked by b/148144561
-include /services/core/java/com/android/server/timezone/OWNERS
diff --git a/core/java/android/app/timezone/RulesManager.java b/core/java/android/app/timezone/RulesManager.java
deleted file mode 100644
index fe83113..0000000
--- a/core/java/android/app/timezone/RulesManager.java
+++ /dev/null
@@ -1,235 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.app.timezone;
-
-import android.annotation.IntDef;
-import android.content.Context;
-import android.os.Handler;
-import android.os.ParcelFileDescriptor;
-import android.os.RemoteException;
-import android.os.ServiceManager;
-import android.util.Log;
-
-import java.io.IOException;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.util.Arrays;
-
-/**
- * The interface through which a time zone update application interacts with the Android system
- * to handle time zone rule updates.
- *
- * <p>This interface is intended for use with the default APK-based time zone rules update
- * application but it can also be used by OEMs if that mechanism is turned off using configuration.
- * All callers must possess the {@link android.Manifest.permission#UPDATE_TIME_ZONE_RULES} system
- * permission unless otherwise stated.
- *
- * <p>When using the default mechanism, when properly configured the Android system will send a
- * {@link RulesUpdaterContract#ACTION_TRIGGER_RULES_UPDATE_CHECK} intent with a
- * {@link RulesUpdaterContract#EXTRA_CHECK_TOKEN} extra to the time zone rules updater application
- * when it detects that it or the OEM's APK containing time zone rules data has been modified. The
- * updater application is then responsible for calling one of
- * {@link #requestInstall(ParcelFileDescriptor, byte[], Callback)},
- * {@link #requestUninstall(byte[], Callback)} or
- * {@link #requestNothing(byte[], boolean)}, indicating, respectively, whether a new time zone rules
- * distro should be installed, the current distro should be uninstalled, or there is nothing to do
- * (or that the correct operation could not be determined due to an error). In each case the updater
- * must pass the {@link RulesUpdaterContract#EXTRA_CHECK_TOKEN} value it received from the intent
- * back so the system in the {@code checkToken} parameter.
- *
- * <p>If OEMs want to handle their own time zone rules updates, perhaps via a server-side component
- * rather than an APK, then they should disable the default triggering mechanism in config and are
- * responsible for triggering their own update checks / installs / uninstalls. In this case the
- * "check token" parameter can be left null and there is never any need to call
- * {@link #requestNothing(byte[], boolean)}.
- *
- * <p>OEMs should not mix the default mechanism and their own as this could lead to conflicts and
- * unnecessary checks being triggered.
- *
- * <p>Applications obtain this using {@link android.app.Activity#getSystemService(String)} with
- * {@link Context#TIME_ZONE_RULES_MANAGER_SERVICE}.
- * @hide
- */
-public final class RulesManager {
-    private static final String TAG = "timezone.RulesManager";
-    private static final boolean DEBUG = false;
-
-    /**
-     * The action of the intent that the Android system will broadcast when a time zone rules update
-     * operation has been successfully staged  (i.e. to be applied next reboot) or unstaged.
-     *
-     * <p>See {@link #EXTRA_OPERATION_STAGED}
-     *
-     * <p>This is a protected intent that can only be sent by the system.
-     */
-    public static final String ACTION_RULES_UPDATE_OPERATION =
-            "com.android.intent.action.timezone.RULES_UPDATE_OPERATION";
-
-    /**
-     * The key for a boolean extra for the {@link #ACTION_RULES_UPDATE_OPERATION} intent used to
-     * indicate whether the operation was a "stage" or an "unstage".
-     */
-    public static final String EXTRA_OPERATION_STAGED = "staged";
-
-    @Retention(RetentionPolicy.SOURCE)
-    @IntDef(prefix = { "SUCCESS", "ERROR_" }, value = {
-            SUCCESS,
-            ERROR_UNKNOWN_FAILURE,
-            ERROR_OPERATION_IN_PROGRESS
-    })
-    public @interface ResultCode {}
-
-    /**
-     * Indicates that an operation succeeded.
-     */
-    public static final int SUCCESS = 0;
-
-    /**
-     * Indicates that an install/uninstall cannot be initiated because there is one already in
-     * progress.
-     */
-    public static final int ERROR_OPERATION_IN_PROGRESS = 1;
-
-    /**
-     * Indicates an install / uninstall did not fully succeed for an unknown reason.
-     */
-    public static final int ERROR_UNKNOWN_FAILURE = 2;
-
-    private final Context mContext;
-    private final IRulesManager mIRulesManager;
-
-    public RulesManager(Context context) {
-        mContext = context;
-        mIRulesManager = IRulesManager.Stub.asInterface(
-                ServiceManager.getService(Context.TIME_ZONE_RULES_MANAGER_SERVICE));
-    }
-
-    /**
-     * Returns information about the current time zone rules state such as the IANA version of
-     * the system and any currently installed distro. This method allows clients to determine the
-     * current device state, perhaps to see if it can be improved; for example by passing the
-     * information to a server that may provide a new distro for download.
-     *
-     * <p>Callers must possess the {@link android.Manifest.permission#QUERY_TIME_ZONE_RULES} system
-     * permission.
-     */
-    public RulesState getRulesState() {
-        try {
-            logDebug("mIRulesManager.getRulesState()");
-            RulesState rulesState = mIRulesManager.getRulesState();
-            logDebug("mIRulesManager.getRulesState() returned " + rulesState);
-            return rulesState;
-        } catch (RemoteException e) {
-            throw e.rethrowFromSystemServer();
-        }
-    }
-
-    /**
-     * Requests installation of the supplied distro. The distro must have been checked for integrity
-     * by the caller or have been received via a trusted mechanism.
-     *
-     * @param distroFileDescriptor the file descriptor for the distro
-     * @param checkToken an optional token provided if the install was triggered in response to a
-     *     {@link RulesUpdaterContract#ACTION_TRIGGER_RULES_UPDATE_CHECK} intent
-     * @param callback the {@link Callback} to receive callbacks related to the installation
-     * @return {@link #SUCCESS} if the installation will be attempted
-     */
-    @ResultCode
-    public int requestInstall(
-            ParcelFileDescriptor distroFileDescriptor, byte[] checkToken, Callback callback)
-            throws IOException {
-
-        ICallback iCallback = new CallbackWrapper(mContext, callback);
-        try {
-            logDebug("mIRulesManager.requestInstall()");
-            return mIRulesManager.requestInstall(distroFileDescriptor, checkToken, iCallback);
-        } catch (RemoteException e) {
-            throw e.rethrowFromSystemServer();
-        }
-    }
-
-    /**
-     * Requests uninstallation of the currently installed distro (leaving the device with no
-     * distro installed).
-     *
-     * @param checkToken an optional token provided if the uninstall was triggered in response to a
-     *     {@link RulesUpdaterContract#ACTION_TRIGGER_RULES_UPDATE_CHECK} intent
-     * @param callback the {@link Callback} to receive callbacks related to the uninstall
-     * @return {@link #SUCCESS} if the uninstallation will be attempted
-     */
-    @ResultCode
-    public int requestUninstall(byte[] checkToken, Callback callback) {
-        ICallback iCallback = new CallbackWrapper(mContext, callback);
-        try {
-            logDebug("mIRulesManager.requestUninstall()");
-            return mIRulesManager.requestUninstall(checkToken, iCallback);
-        } catch (RemoteException e) {
-            throw e.rethrowFromSystemServer();
-        }
-    }
-
-    /*
-     * We wrap incoming binder calls with a private class implementation that
-     * redirects them into main-thread actions.  This serializes the backup
-     * progress callbacks nicely within the usual main-thread lifecycle pattern.
-     */
-    private class CallbackWrapper extends ICallback.Stub {
-        final Handler mHandler;
-        final Callback mCallback;
-
-        CallbackWrapper(Context context, Callback callback) {
-            mCallback = callback;
-            mHandler = new Handler(context.getMainLooper());
-        }
-
-        // Binder calls into this object just enqueue on the main-thread handler
-        @Override
-        public void onFinished(int status) {
-            logDebug("mCallback.onFinished(status), status=" + status);
-            mHandler.post(() -> mCallback.onFinished(status));
-        }
-    }
-
-    /**
-     * Requests the system does not modify the currently installed time zone distro, if any. This
-     * method records the fact that a time zone check operation triggered by the system is now
-     * complete and there was nothing to do. The token passed should be the one presented when the
-     * check was triggered.
-     *
-     * <p>Note: Passing {@code success == false} may result in more checks being triggered. Clients
-     * should be careful not to pass false if the failure is unlikely to resolve by itself.
-     *
-     * @param checkToken an optional token provided if the install was triggered in response to a
-     *     {@link RulesUpdaterContract#ACTION_TRIGGER_RULES_UPDATE_CHECK} intent
-     * @param succeeded true if the check was successful, false if it was not successful but may
-     *     succeed if it is retried
-     */
-    public void requestNothing(byte[] checkToken, boolean succeeded) {
-        try {
-            logDebug("mIRulesManager.requestNothing() with token=" + Arrays.toString(checkToken));
-            mIRulesManager.requestNothing(checkToken, succeeded);
-        } catch (RemoteException e) {
-            throw e.rethrowFromSystemServer();
-        }
-    }
-
-    static void logDebug(String msg) {
-        if (DEBUG) {
-            Log.v(TAG, msg);
-        }
-    }
-}
diff --git a/core/java/android/app/timezone/RulesState.aidl b/core/java/android/app/timezone/RulesState.aidl
deleted file mode 100644
index 665220d..0000000
--- a/core/java/android/app/timezone/RulesState.aidl
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.app.timezone;
-
-parcelable RulesState;
\ No newline at end of file
diff --git a/core/java/android/app/timezone/RulesState.java b/core/java/android/app/timezone/RulesState.java
deleted file mode 100644
index 516ad03..0000000
--- a/core/java/android/app/timezone/RulesState.java
+++ /dev/null
@@ -1,302 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.app.timezone;
-
-import static android.app.timezone.Utils.validateConditionalNull;
-import static android.app.timezone.Utils.validateNotNull;
-import static android.app.timezone.Utils.validateRulesVersion;
-
-import android.annotation.IntDef;
-import android.annotation.Nullable;
-import android.os.Parcel;
-import android.os.Parcelable;
-
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-
-/**
- * Description of the state of time zone rules on a device.
- *
- * <p>The following properties are included:
- * <dl>
- *     <dt>baseRulesVersion</dt>
- *     <dd>the IANA rules version that shipped with the OS. Always present. e.g. "2017a".</dd>
- *     <dt>distroFormatVersionSupported</dt>
- *     <dd>the distro format version supported by this device. Always present.</dd>
- *     <dt>operationInProgress</dt>
- *     <dd>{@code true} if there is an install / uninstall operation currently happening.</dd>
- *     <dt>stagedOperationType</dt>
- *     <dd>one of {@link #STAGED_OPERATION_UNKNOWN}, {@link #STAGED_OPERATION_NONE},
- *     {@link #STAGED_OPERATION_UNINSTALL} and {@link #STAGED_OPERATION_INSTALL} indicating whether
- *     there is a currently staged time zone distro operation. {@link #STAGED_OPERATION_UNKNOWN} is
- *     used when {@link #isOperationInProgress()} is {@code true}. Staged operations currently
- *     require a reboot to become active.</dd>
- *     <dt>stagedDistroRulesVersion</dt>
- *     <dd>[present if distroStagedState == STAGED_STATE_INSTALL], the rules version of the distro
- *     currently staged for installation.</dd>
- *     <dt>distroStatus</dt>
- *     <dd>{@link #DISTRO_STATUS_INSTALLED} if there is a time zone distro installed and active,
- *     {@link #DISTRO_STATUS_NONE} if there is no active installed distro.
- *     {@link #DISTRO_STATUS_UNKNOWN} is used when {@link #isOperationInProgress()} is {@code true}.
- *     </dd>
- *     <dt>installedDistroRulesVersion</dt>
- *     <dd>[present if distroStatus == {@link #DISTRO_STATUS_INSTALLED}], the rules version of the
- *     installed and active distro.</dd>
- * </dl>
- *
- * @hide
- */
-public final class RulesState implements Parcelable {
-
-    @Retention(RetentionPolicy.SOURCE)
-    @IntDef(prefix = { "STAGED_OPERATION_" }, value = {
-            STAGED_OPERATION_UNKNOWN,
-            STAGED_OPERATION_NONE,
-            STAGED_OPERATION_UNINSTALL,
-            STAGED_OPERATION_INSTALL
-    })
-    private @interface StagedOperationType {}
-
-    /** Staged state could not be determined. */
-    public static final int STAGED_OPERATION_UNKNOWN = 0;
-    /** Nothing is staged. */
-    public static final int STAGED_OPERATION_NONE = 1;
-    /** An uninstall is staged. */
-    public static final int STAGED_OPERATION_UNINSTALL = 2;
-    /** An install is staged. */
-    public static final int STAGED_OPERATION_INSTALL = 3;
-
-    @Retention(RetentionPolicy.SOURCE)
-    @IntDef(prefix = { "DISTRO_STATUS_" }, value = {
-            DISTRO_STATUS_UNKNOWN,
-            DISTRO_STATUS_NONE,
-            DISTRO_STATUS_INSTALLED
-    })
-    private @interface DistroStatus {}
-
-    /** The current distro status could not be determined. */
-    public static final int DISTRO_STATUS_UNKNOWN = 0;
-    /** There is no active installed time zone distro. */
-    public static final int DISTRO_STATUS_NONE = 1;
-    /** The is an active, installed time zone distro. */
-    public static final int DISTRO_STATUS_INSTALLED = 2;
-
-    private static final byte BYTE_FALSE = 0;
-    private static final byte BYTE_TRUE = 1;
-
-    private final String mBaseRulesVersion;
-    private final DistroFormatVersion mDistroFormatVersionSupported;
-    private final boolean mOperationInProgress;
-    @StagedOperationType private final int mStagedOperationType;
-    @Nullable private final DistroRulesVersion mStagedDistroRulesVersion;
-    @DistroStatus private final int mDistroStatus;
-    @Nullable private final DistroRulesVersion mInstalledDistroRulesVersion;
-
-    public RulesState(String baseRulesVersion, DistroFormatVersion distroFormatVersionSupported,
-            boolean operationInProgress,
-            @StagedOperationType int stagedOperationType,
-            @Nullable DistroRulesVersion stagedDistroRulesVersion,
-            @DistroStatus int distroStatus,
-            @Nullable DistroRulesVersion installedDistroRulesVersion) {
-        this.mBaseRulesVersion = validateRulesVersion("baseRulesVersion", baseRulesVersion);
-        this.mDistroFormatVersionSupported =
-                validateNotNull("distroFormatVersionSupported", distroFormatVersionSupported);
-        this.mOperationInProgress = operationInProgress;
-
-        if (operationInProgress && stagedOperationType != STAGED_OPERATION_UNKNOWN) {
-            throw new IllegalArgumentException(
-                    "stagedOperationType != STAGED_OPERATION_UNKNOWN");
-        }
-        this.mStagedOperationType = validateStagedOperation(stagedOperationType);
-        this.mStagedDistroRulesVersion = validateConditionalNull(
-                mStagedOperationType == STAGED_OPERATION_INSTALL /* requireNotNull */,
-                "stagedDistroRulesVersion", stagedDistroRulesVersion);
-
-        this.mDistroStatus = validateDistroStatus(distroStatus);
-        this.mInstalledDistroRulesVersion = validateConditionalNull(
-                mDistroStatus == DISTRO_STATUS_INSTALLED/* requireNotNull */,
-                "installedDistroRulesVersion", installedDistroRulesVersion);
-    }
-
-    public String getBaseRulesVersion() {
-        return mBaseRulesVersion;
-    }
-
-    public boolean isOperationInProgress() {
-        return mOperationInProgress;
-    }
-
-    public @StagedOperationType int getStagedOperationType() {
-        return mStagedOperationType;
-    }
-
-    /**
-     * Returns the staged rules version when {@link #getStagedOperationType()} is
-     * {@link #STAGED_OPERATION_INSTALL}.
-     */
-    public @Nullable DistroRulesVersion getStagedDistroRulesVersion() {
-        return mStagedDistroRulesVersion;
-    }
-
-    public @DistroStatus int getDistroStatus() {
-        return mDistroStatus;
-    }
-
-    /**
-     * Returns the installed rules version when {@link #getDistroStatus()} is
-     * {@link #DISTRO_STATUS_INSTALLED}.
-     */
-    public @Nullable DistroRulesVersion getInstalledDistroRulesVersion() {
-        return mInstalledDistroRulesVersion;
-    }
-
-    /**
-     * Returns true if a distro in the specified format is supported on this device.
-     */
-    public boolean isDistroFormatVersionSupported(DistroFormatVersion distroFormatVersion) {
-        return mDistroFormatVersionSupported.supports(distroFormatVersion);
-    }
-
-    /**
-     * Returns true if the base data files contain IANA rules data that are newer than the
-     * distro IANA rules version supplied, i.e. true when the version specified would be "worse"
-     * than the one that is in the base data. Returns false if the base version is the
-     * same or older, i.e. false when the version specified would be "better" than the one that is
-     * in the base set.
-     */
-    public boolean isBaseVersionNewerThan(DistroRulesVersion distroRulesVersion) {
-        return mBaseRulesVersion.compareTo(distroRulesVersion.getRulesVersion()) > 0;
-    }
-
-    public static final @android.annotation.NonNull Parcelable.Creator<RulesState> CREATOR =
-            new Parcelable.Creator<RulesState>() {
-        public RulesState createFromParcel(Parcel in) {
-            return RulesState.createFromParcel(in);
-        }
-
-        public RulesState[] newArray(int size) {
-            return new RulesState[size];
-        }
-    };
-
-    private static RulesState createFromParcel(Parcel in) {
-        String baseRulesVersion = in.readString();
-        DistroFormatVersion distroFormatVersionSupported = in.readParcelable(null, android.app.timezone.DistroFormatVersion.class);
-        boolean operationInProgress = in.readByte() == BYTE_TRUE;
-        int distroStagedState = in.readByte();
-        DistroRulesVersion stagedDistroRulesVersion = in.readParcelable(null, android.app.timezone.DistroRulesVersion.class);
-        int installedDistroStatus = in.readByte();
-        DistroRulesVersion installedDistroRulesVersion = in.readParcelable(null, android.app.timezone.DistroRulesVersion.class);
-        return new RulesState(baseRulesVersion, distroFormatVersionSupported, operationInProgress,
-                distroStagedState, stagedDistroRulesVersion,
-                installedDistroStatus, installedDistroRulesVersion);
-    }
-
-    @Override
-    public int describeContents() {
-        return 0;
-    }
-
-    @Override
-    public void writeToParcel(Parcel out, int flags) {
-        out.writeString(mBaseRulesVersion);
-        out.writeParcelable(mDistroFormatVersionSupported, 0);
-        out.writeByte(mOperationInProgress ? BYTE_TRUE : BYTE_FALSE);
-        out.writeByte((byte) mStagedOperationType);
-        out.writeParcelable(mStagedDistroRulesVersion, 0);
-        out.writeByte((byte) mDistroStatus);
-        out.writeParcelable(mInstalledDistroRulesVersion, 0);
-    }
-
-    @Override
-    public boolean equals(@Nullable Object o) {
-        if (this == o) {
-            return true;
-        }
-        if (o == null || getClass() != o.getClass()) {
-            return false;
-        }
-
-        RulesState that = (RulesState) o;
-
-        if (mOperationInProgress != that.mOperationInProgress) {
-            return false;
-        }
-        if (mStagedOperationType != that.mStagedOperationType) {
-            return false;
-        }
-        if (mDistroStatus != that.mDistroStatus) {
-            return false;
-        }
-        if (!mBaseRulesVersion.equals(that.mBaseRulesVersion)) {
-            return false;
-        }
-        if (!mDistroFormatVersionSupported.equals(that.mDistroFormatVersionSupported)) {
-            return false;
-        }
-        if (mStagedDistroRulesVersion != null ? !mStagedDistroRulesVersion
-                .equals(that.mStagedDistroRulesVersion) : that.mStagedDistroRulesVersion != null) {
-            return false;
-        }
-        return mInstalledDistroRulesVersion != null ? mInstalledDistroRulesVersion
-                .equals(that.mInstalledDistroRulesVersion)
-                : that.mInstalledDistroRulesVersion == null;
-    }
-
-    @Override
-    public int hashCode() {
-        int result = mBaseRulesVersion.hashCode();
-        result = 31 * result + mDistroFormatVersionSupported.hashCode();
-        result = 31 * result + (mOperationInProgress ? 1 : 0);
-        result = 31 * result + mStagedOperationType;
-        result = 31 * result + (mStagedDistroRulesVersion != null ? mStagedDistroRulesVersion
-                .hashCode()
-                : 0);
-        result = 31 * result + mDistroStatus;
-        result = 31 * result + (mInstalledDistroRulesVersion != null ? mInstalledDistroRulesVersion
-                .hashCode() : 0);
-        return result;
-    }
-
-    @Override
-    public String toString() {
-        return "RulesState{"
-                + "mBaseRulesVersion='" + mBaseRulesVersion + '\''
-                + ", mDistroFormatVersionSupported=" + mDistroFormatVersionSupported
-                + ", mOperationInProgress=" + mOperationInProgress
-                + ", mStagedOperationType=" + mStagedOperationType
-                + ", mStagedDistroRulesVersion=" + mStagedDistroRulesVersion
-                + ", mDistroStatus=" + mDistroStatus
-                + ", mInstalledDistroRulesVersion=" + mInstalledDistroRulesVersion
-                + '}';
-    }
-
-    private static int validateStagedOperation(int stagedOperationType) {
-        if (stagedOperationType < STAGED_OPERATION_UNKNOWN
-                || stagedOperationType > STAGED_OPERATION_INSTALL) {
-            throw new IllegalArgumentException("Unknown operation type=" + stagedOperationType);
-        }
-        return stagedOperationType;
-    }
-
-    private static int validateDistroStatus(int distroStatus) {
-        if (distroStatus < DISTRO_STATUS_UNKNOWN || distroStatus > DISTRO_STATUS_INSTALLED) {
-            throw new IllegalArgumentException("Unknown distro status=" + distroStatus);
-        }
-        return distroStatus;
-    }
-}
diff --git a/core/java/android/app/timezone/RulesUpdaterContract.java b/core/java/android/app/timezone/RulesUpdaterContract.java
deleted file mode 100644
index 74ed658..0000000
--- a/core/java/android/app/timezone/RulesUpdaterContract.java
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.app.timezone;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.ParcelFileDescriptor;
-import android.os.UserHandle;
-
-/**
- * Constants related to the contract between the Android system and the privileged time zone updater
- * application.
- *
- * @hide
- */
-public final class RulesUpdaterContract {
-
-    /**
-     * The system permission possessed by the Android system that allows it to trigger time zone
-     * update checks. The updater should be configured to require this permission when registering
-     * for {@link #ACTION_TRIGGER_RULES_UPDATE_CHECK} intents.
-     */
-    public static final String TRIGGER_TIME_ZONE_RULES_CHECK_PERMISSION =
-            android.Manifest.permission.TRIGGER_TIME_ZONE_RULES_CHECK;
-
-    /**
-     * The system permission possessed by the time zone rules updater app that allows it to update
-     * device time zone rules. The Android system requires this permission for calls made to
-     * {@link RulesManager}.
-     */
-    public static final String UPDATE_TIME_ZONE_RULES_PERMISSION =
-            android.Manifest.permission.UPDATE_TIME_ZONE_RULES;
-
-    /**
-     * The action of the intent that the Android system will broadcast. The intent will be targeted
-     * at the configured updater application's package meaning the term "broadcast" only loosely
-     * applies.
-     */
-    public static final String ACTION_TRIGGER_RULES_UPDATE_CHECK =
-            "com.android.intent.action.timezone.TRIGGER_RULES_UPDATE_CHECK";
-
-    /**
-     * The extra containing the {@code byte[]} that should be passed to
-     * {@link RulesManager#requestInstall(ParcelFileDescriptor, byte[], Callback)},
-     * {@link RulesManager#requestUninstall(byte[], Callback)} and
-     * {@link RulesManager#requestNothing(byte[], boolean)} methods when the
-     * {@link #ACTION_TRIGGER_RULES_UPDATE_CHECK} intent has been processed.
-     */
-    public static final String EXTRA_CHECK_TOKEN =
-            "com.android.intent.extra.timezone.CHECK_TOKEN";
-
-    /**
-     * Creates an intent that would trigger a time zone rules update check.
-     */
-    public static Intent createUpdaterIntent(String updaterPackageName) {
-        Intent intent = new Intent(RulesUpdaterContract.ACTION_TRIGGER_RULES_UPDATE_CHECK);
-        intent.setPackage(updaterPackageName);
-        intent.setFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES);
-        return intent;
-    }
-
-    /**
-     * Broadcasts an {@link #ACTION_TRIGGER_RULES_UPDATE_CHECK} intent with the
-     * {@link #EXTRA_CHECK_TOKEN} that triggers an update check, including the required receiver
-     * permission.
-     */
-    public static void sendBroadcast(Context context, String updaterAppPackageName,
-            byte[] checkTokenBytes) {
-        Intent intent = createUpdaterIntent(updaterAppPackageName);
-        intent.putExtra(EXTRA_CHECK_TOKEN, checkTokenBytes);
-        context.sendBroadcastAsUser(
-                intent, UserHandle.SYSTEM,
-                RulesUpdaterContract.UPDATE_TIME_ZONE_RULES_PERMISSION);
-    }
-}
diff --git a/core/java/android/app/timezone/Utils.java b/core/java/android/app/timezone/Utils.java
deleted file mode 100644
index 8dd3fb7..0000000
--- a/core/java/android/app/timezone/Utils.java
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package android.app.timezone;
-
-/**
- * Shared code for android.app.timezone classes.
- */
-final class Utils {
-    private Utils() {}
-
-    static int validateVersion(String type, int version) {
-        if (version < 0 || version > 999) {
-            throw new IllegalArgumentException("Invalid " + type + " version=" + version);
-        }
-        return version;
-    }
-
-    static String validateRulesVersion(String type, String rulesVersion) {
-        validateNotNull(type, rulesVersion);
-
-        if (rulesVersion.isEmpty()) {
-            throw new IllegalArgumentException(type + " must not be empty");
-        }
-        return rulesVersion;
-    }
-
-    /** Validates that {@code object} is not null. Always returns {@code object}. */
-    static <T> T validateNotNull(String type, T object) {
-        if (object == null) {
-            throw new NullPointerException(type + " == null");
-        }
-        return object;
-    }
-
-    /**
-     * If {@code requireNotNull} is {@code true} calls {@link #validateNotNull(String, Object)},
-     * and {@link #validateNull(String, Object)} otherwise. Returns {@code object}.
-     */
-    static <T> T validateConditionalNull(boolean requireNotNull, String type, T object) {
-        if (requireNotNull) {
-            return validateNotNull(type, object);
-        } else {
-            return validateNull(type, object);
-        }
-    }
-
-    /** Validates that {@code object} is null. Always returns null. */
-    static <T> T validateNull(String type, T object) {
-        if (object != null) {
-            throw new IllegalArgumentException(type + " != null");
-        }
-        return null;
-    }
-}
diff --git a/core/java/android/content/Context.java b/core/java/android/content/Context.java
index 0735532..3b45d62 100644
--- a/core/java/android/content/Context.java
+++ b/core/java/android/content/Context.java
@@ -3821,7 +3821,6 @@
             STORAGE_SERVICE,
             STORAGE_STATS_SERVICE,
             WALLPAPER_SERVICE,
-            TIME_ZONE_RULES_MANAGER_SERVICE,
             VIBRATOR_MANAGER_SERVICE,
             VIBRATOR_SERVICE,
             //@hide: STATUS_BAR_SERVICE,
@@ -5755,15 +5754,6 @@
     public static final String VR_SERVICE = "vrmanager";
 
     /**
-     * Use with {@link #getSystemService(String)} to retrieve an
-     * {@link android.app.timezone.ITimeZoneRulesManager}.
-     * @hide
-     *
-     * @see #getSystemService(String)
-     */
-    public static final String TIME_ZONE_RULES_MANAGER_SERVICE = "timezone";
-
-    /**
      * Use with {@link #getSystemService(String)} to retrieve a
      * {@link android.content.pm.CrossProfileApps} for cross profile operations.
      *
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 3b4b830..838d920 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -671,10 +671,6 @@
     <protected-broadcast android:name="android.media.tv.action.CHANNEL_BROWSABLE_REQUESTED" />
     <protected-broadcast android:name="com.android.server.inputmethod.InputMethodManagerService.SHOW_INPUT_METHOD_PICKER" />
 
-    <!-- Time zone rules update intents fired by the system server -->
-    <protected-broadcast android:name="com.android.intent.action.timezone.RULES_UPDATE_OPERATION" />
-    <protected-broadcast android:name="com.android.intent.action.timezone.TRIGGER_RULES_UPDATE_CHECK" />
-
     <!-- Made protected in P (was introduced in JB-MR2) -->
     <protected-broadcast android:name="android.intent.action.GET_RESTRICTION_ENTRIES" />
     <protected-broadcast android:name="android.telephony.euicc.action.OTA_STATUS_CHANGED" />
@@ -3673,7 +3669,8 @@
 
     <!-- Allows an application to query the current time zone rules state
          on device.
-         @SystemApi @hide -->
+         @SystemApi @hide
+         @deprecated Vestigial permission declaration. No longer used. -->
     <permission android:name="android.permission.QUERY_TIME_ZONE_RULES"
                 android:protectionLevel="signature|privileged" />
 
@@ -3682,17 +3679,11 @@
          <p>An application requesting this permission is responsible for
          verifying the source and integrity of the update before passing
          it off to the installer components.
-         @SystemApi @hide -->
+         @SystemApi @hide
+         @deprecated Vestigial permission declaration. No longer used. -->
     <permission android:name="android.permission.UPDATE_TIME_ZONE_RULES"
         android:protectionLevel="signature|privileged" />
 
-    <!-- Must be required by a time zone rule updater application,
-         to ensure that only the system can trigger it.
-         @hide -->
-    <permission android:name="android.permission.TRIGGER_TIME_ZONE_RULES_CHECK"
-        android:protectionLevel="signature" />
-    <uses-permission android:name="android.permission.TRIGGER_TIME_ZONE_RULES_CHECK"/>
-
     <!-- Allows the system to reset throttling in shortcut manager.
          @hide -->
     <permission android:name="android.permission.RESET_SHORTCUT_MANAGER_THROTTLING"
diff --git a/core/tests/coretests/src/android/app/timezone/DistroFormatVersionTest.java b/core/tests/coretests/src/android/app/timezone/DistroFormatVersionTest.java
deleted file mode 100644
index 0efc0ab..0000000
--- a/core/tests/coretests/src/android/app/timezone/DistroFormatVersionTest.java
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.app.timezone;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
-
-import android.os.Parcel;
-
-import androidx.test.filters.LargeTest;
-
-import org.junit.Test;
-
-/**
- * Tests for {@link DistroFormatVersion}.
- */
-@LargeTest
-public class DistroFormatVersionTest {
-
-    @Test
-    public void equalsAndHashCode() {
-        DistroFormatVersion one = new DistroFormatVersion(1, 2);
-        assertEqualsContract(one, one);
-
-        DistroFormatVersion two = new DistroFormatVersion(1, 2);
-        assertEqualsContract(one, two);
-
-        DistroFormatVersion three = new DistroFormatVersion(2, 1);
-        assertFalse(one.equals(three));
-    }
-
-    @Test
-    public void parcelable() {
-        DistroFormatVersion version = new DistroFormatVersion(2, 3);
-
-        Parcel parcel = Parcel.obtain();
-        version.writeToParcel(parcel, 0 /* flags */);
-        parcel.setDataPosition(0);
-
-        DistroFormatVersion newVersion = DistroFormatVersion.CREATOR.createFromParcel(parcel);
-
-        assertEquals(version, newVersion);
-    }
-
-    @Test
-    public void supportsVersion() {
-        DistroFormatVersion deviceVersion = new DistroFormatVersion(2, 2);
-        assertTrue(deviceVersion.supports(deviceVersion));
-
-        DistroFormatVersion sameVersion = new DistroFormatVersion(2, 2);
-        assertTrue(deviceVersion.supports(sameVersion));
-
-        // Minor versions are backwards compatible.
-        DistroFormatVersion sameMajorNewerMinor = new DistroFormatVersion(2, 3);
-        assertTrue(deviceVersion.supports(sameMajorNewerMinor));
-        DistroFormatVersion sameMajorOlderMinor = new DistroFormatVersion(2, 1);
-        assertFalse(deviceVersion.supports(sameMajorOlderMinor));
-
-        // Major versions are not backwards compatible.
-        DistroFormatVersion newerMajor = new DistroFormatVersion(1, 2);
-        assertFalse(deviceVersion.supports(newerMajor));
-        DistroFormatVersion olderMajor = new DistroFormatVersion(3, 2);
-        assertFalse(deviceVersion.supports(olderMajor));
-    }
-
-    private static void assertEqualsContract(DistroFormatVersion one, DistroFormatVersion two) {
-        assertEquals(one, two);
-        assertEquals(one.hashCode(), two.hashCode());
-    }
-}
diff --git a/core/tests/coretests/src/android/app/timezone/DistroRulesVersionTest.java b/core/tests/coretests/src/android/app/timezone/DistroRulesVersionTest.java
deleted file mode 100644
index b519bf8..0000000
--- a/core/tests/coretests/src/android/app/timezone/DistroRulesVersionTest.java
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.app.timezone;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
-
-import android.os.Parcel;
-
-import androidx.test.filters.LargeTest;
-
-import org.junit.Test;
-
-/**
- * Tests for {@link DistroRulesVersion}.
- */
-@LargeTest
-public class DistroRulesVersionTest {
-
-    @Test
-    public void equalsAndHashCode() {
-        DistroRulesVersion one = new DistroRulesVersion("2016a", 2);
-        assertEqualsContract(one, one);
-
-        DistroRulesVersion two = new DistroRulesVersion("2016a", 2);
-        assertEqualsContract(one, two);
-
-        DistroRulesVersion three = new DistroRulesVersion("2016b", 1);
-        assertFalse(one.equals(three));
-    }
-
-    @Test
-    public void parcelable() {
-        DistroRulesVersion version = new DistroRulesVersion("2016a", 2);
-
-        Parcel parcel = Parcel.obtain();
-        version.writeToParcel(parcel, 0 /* flags */);
-        parcel.setDataPosition(0);
-
-        DistroRulesVersion newVersion = DistroRulesVersion.CREATOR.createFromParcel(parcel);
-
-        assertEquals(version, newVersion);
-    }
-
-    @Test
-    public void isOlderThan() {
-        DistroRulesVersion deviceVersion = new DistroRulesVersion("2016b", 2);
-        assertFalse(deviceVersion.isOlderThan(deviceVersion));
-
-        DistroRulesVersion sameVersion = new DistroRulesVersion("2016b", 2);
-        assertFalse(deviceVersion.isOlderThan(sameVersion));
-
-        DistroRulesVersion sameRulesNewerRevision = new DistroRulesVersion("2016b", 3);
-        assertTrue(deviceVersion.isOlderThan(sameRulesNewerRevision));
-
-        DistroRulesVersion sameRulesOlderRevision = new DistroRulesVersion("2016b", 1);
-        assertFalse(deviceVersion.isOlderThan(sameRulesOlderRevision));
-
-        DistroRulesVersion newerRules = new DistroRulesVersion("2016c", 2);
-        assertTrue(deviceVersion.isOlderThan(newerRules));
-
-        DistroRulesVersion olderRules = new DistroRulesVersion("2016a", 2);
-        assertFalse(deviceVersion.isOlderThan(olderRules));
-    }
-
-    private static void assertEqualsContract(DistroRulesVersion one, DistroRulesVersion two) {
-        assertEquals(one, two);
-        assertEquals(one.hashCode(), two.hashCode());
-    }
-}
diff --git a/core/tests/coretests/src/android/app/timezone/OWNERS b/core/tests/coretests/src/android/app/timezone/OWNERS
deleted file mode 100644
index 381ecf1..0000000
--- a/core/tests/coretests/src/android/app/timezone/OWNERS
+++ /dev/null
@@ -1,2 +0,0 @@
-# Bug component: 24949
-include /core/java/android/app/timezone/OWNERS
diff --git a/core/tests/coretests/src/android/app/timezone/RulesStateTest.java b/core/tests/coretests/src/android/app/timezone/RulesStateTest.java
deleted file mode 100644
index 30cc7ff..0000000
--- a/core/tests/coretests/src/android/app/timezone/RulesStateTest.java
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.app.timezone;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
-
-import android.os.Parcel;
-
-import androidx.test.filters.LargeTest;
-
-import org.junit.Test;
-
-/**
- * Tests for {@link RulesState}.
- */
-@LargeTest
-public class RulesStateTest {
-
-    @Test
-    public void equalsAndHashCode() {
-        RulesState one = new RulesState(
-                "2016a", formatVersion(1, 2), false /* operationInProgress */,
-                RulesState.STAGED_OPERATION_INSTALL, rulesVersion("2016a", 3),
-                RulesState.DISTRO_STATUS_INSTALLED, rulesVersion("2016b", 2));
-        assertEqualsContract(one, one);
-
-        RulesState two = new RulesState(
-                "2016a", formatVersion(1, 2), false /* operationInProgress */,
-                RulesState.STAGED_OPERATION_INSTALL, rulesVersion("2016a", 3),
-                RulesState.DISTRO_STATUS_INSTALLED, rulesVersion("2016b", 2));
-        assertEqualsContract(one, two);
-
-        RulesState differentBaseRules = new RulesState(
-                "2016b", formatVersion(1, 2), false /* operationInProgress */,
-                RulesState.STAGED_OPERATION_INSTALL, rulesVersion("2016a", 3),
-                RulesState.DISTRO_STATUS_INSTALLED, rulesVersion("2016b", 2));
-        assertFalse(one.equals(differentBaseRules));
-
-        RulesState differentFormatVersion = new RulesState(
-                "2016a", formatVersion(1, 1), false /* operationInProgress */,
-                RulesState.STAGED_OPERATION_INSTALL, rulesVersion("2016a", 3),
-                RulesState.DISTRO_STATUS_INSTALLED, rulesVersion("2016b", 2));
-        assertFalse(one.equals(differentFormatVersion));
-
-        RulesState differentOperationInProgress = new RulesState(
-                "2016a", formatVersion(1, 1), true /* operationInProgress */,
-                RulesState.STAGED_OPERATION_UNKNOWN, null /* stagedDistroRulesVersion */,
-                RulesState.DISTRO_STATUS_UNKNOWN, null /* installedDistroRulesVersion */);
-        assertFalse(one.equals(differentOperationInProgress));
-
-        RulesState differentStagedOperation = new RulesState(
-                "2016a", formatVersion(1, 1), false /* operationInProgress */,
-                RulesState.STAGED_OPERATION_UNINSTALL, null /* stagedDistroRulesVersion */,
-                RulesState.DISTRO_STATUS_INSTALLED, rulesVersion("2016b", 2));
-        assertFalse(one.equals(differentStagedOperation));
-
-        RulesState differentStagedInstallVersion = new RulesState(
-                "2016a", formatVersion(1, 1), false /* operationInProgress */,
-                RulesState.STAGED_OPERATION_INSTALL, rulesVersion("2016a", 4),
-                RulesState.DISTRO_STATUS_INSTALLED, rulesVersion("2016b", 2));
-        assertFalse(one.equals(differentStagedInstallVersion));
-
-        RulesState differentInstalled = new RulesState(
-                "2016a", formatVersion(1, 1), false /* operationInProgress */,
-                RulesState.STAGED_OPERATION_INSTALL, rulesVersion("2016a", 3),
-                RulesState.DISTRO_STATUS_NONE, null /* installedDistroRulesVersion */);
-        assertFalse(one.equals(differentInstalled));
-
-        RulesState differentInstalledVersion = new RulesState(
-                "2016a", formatVersion(1, 1), false /* operationInProgress */,
-                RulesState.STAGED_OPERATION_INSTALL, rulesVersion("2016a", 3),
-                RulesState.DISTRO_STATUS_INSTALLED, rulesVersion("2016b", 3));
-        assertFalse(one.equals(differentInstalledVersion));
-    }
-
-    @Test
-    public void parcelable() {
-        RulesState rulesState1 = new RulesState(
-                "2016a", formatVersion(1, 1), false /* operationInProgress */,
-                RulesState.STAGED_OPERATION_INSTALL, rulesVersion("2016b", 2),
-                RulesState.DISTRO_STATUS_INSTALLED, rulesVersion("2016b", 3));
-        checkParcelableRoundTrip(rulesState1);
-
-        RulesState rulesStateWithNulls = new RulesState(
-                "2016a", formatVersion(1, 1), false /* operationInProgress */,
-                RulesState.STAGED_OPERATION_NONE, null /* stagedDistroRulesVersion */,
-                RulesState.DISTRO_STATUS_NONE, null /* installedDistroRulesVersion */);
-        checkParcelableRoundTrip(rulesStateWithNulls);
-
-        RulesState rulesStateWithUnknowns = new RulesState(
-                "2016a", formatVersion(1, 1), true /* operationInProgress */,
-                RulesState.STAGED_OPERATION_UNKNOWN, null /* stagedDistroRulesVersion */,
-                RulesState.DISTRO_STATUS_UNKNOWN, null /* installedDistroRulesVersion */);
-        checkParcelableRoundTrip(rulesStateWithUnknowns);
-    }
-
-    private static void checkParcelableRoundTrip(RulesState rulesState) {
-        Parcel parcel = Parcel.obtain();
-        rulesState.writeToParcel(parcel, 0 /* flags */);
-        parcel.setDataPosition(0);
-
-        RulesState newVersion = RulesState.CREATOR.createFromParcel(parcel);
-
-        assertEquals(rulesState, newVersion);
-    }
-
-    @Test
-    public void isBaseVersionNewerThan() {
-        RulesState rulesState = new RulesState(
-                "2016b", formatVersion(1, 1), false /* operationInProgress */,
-                RulesState.STAGED_OPERATION_NONE, null /* stagedDistroRulesVersion */,
-                RulesState.DISTRO_STATUS_INSTALLED, rulesVersion("2016b", 3));
-        assertTrue(rulesState.isBaseVersionNewerThan(rulesVersion("2016a", 1)));
-        assertFalse(rulesState.isBaseVersionNewerThan(rulesVersion("2016b", 1)));
-        assertFalse(rulesState.isBaseVersionNewerThan(rulesVersion("2016c", 1)));
-    }
-
-    private static void assertEqualsContract(RulesState one, RulesState two) {
-        assertEquals(one, two);
-        assertEquals(one.hashCode(), two.hashCode());
-    }
-
-    private static DistroRulesVersion rulesVersion(String rulesVersion, int revision) {
-        return new DistroRulesVersion(rulesVersion, revision);
-    }
-
-    private static DistroFormatVersion formatVersion(int majorVersion, int minorVersion) {
-        return new DistroFormatVersion(majorVersion, minorVersion);
-    }
-}
diff --git a/core/tests/coretests/src/android/app/timezone/RulesUpdaterContractTest.java b/core/tests/coretests/src/android/app/timezone/RulesUpdaterContractTest.java
deleted file mode 100644
index df9ddea..0000000
--- a/core/tests/coretests/src/android/app/timezone/RulesUpdaterContractTest.java
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.app.timezone;
-
-import static org.junit.Assert.assertEquals;
-import static org.mockito.Matchers.eq;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.verify;
-import static org.mockito.hamcrest.MockitoHamcrest.argThat;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.UserHandle;
-
-import androidx.test.filters.LargeTest;
-
-import org.hamcrest.BaseMatcher;
-import org.hamcrest.Description;
-import org.hamcrest.Matcher;
-import org.junit.Test;
-
-/**
- * Tests for {@link RulesUpdaterContract}.
- */
-@LargeTest
-public class RulesUpdaterContractTest {
-
-    @Test
-    public void createUpdaterIntent() throws Exception {
-        String packageName = "foobar";
-        Intent intent = RulesUpdaterContract.createUpdaterIntent(packageName);
-
-        assertEquals(RulesUpdaterContract.ACTION_TRIGGER_RULES_UPDATE_CHECK, intent.getAction());
-        assertEquals(packageName, intent.getPackage());
-        assertEquals(Intent.FLAG_INCLUDE_STOPPED_PACKAGES, intent.getFlags());
-    }
-
-    @Test
-    public void sendBroadcast() throws Exception {
-        String packageName = "foobar";
-        byte[] tokenBytes = new byte[] { 1, 2, 3, 4, 5 };
-
-        Intent expectedIntent = RulesUpdaterContract.createUpdaterIntent(packageName);
-        expectedIntent.putExtra(RulesUpdaterContract.EXTRA_CHECK_TOKEN, tokenBytes);
-
-        Context mockContext = mock(Context.class);
-
-        RulesUpdaterContract.sendBroadcast(mockContext, packageName, tokenBytes);
-
-        verify(mockContext).sendBroadcastAsUser(
-                filterEquals(expectedIntent),
-                eq(UserHandle.SYSTEM),
-                eq(RulesUpdaterContract.UPDATE_TIME_ZONE_RULES_PERMISSION));
-    }
-
-    /**
-     * Registers a mockito parameter matcher that uses {@link Intent#filterEquals(Intent)}. to
-     * check the parameter against the intent supplied.
-     */
-    private static Intent filterEquals(final Intent expected) {
-        final Matcher<Intent> m = new BaseMatcher<Intent>() {
-            @Override
-            public boolean matches(Object actual) {
-                return actual != null && expected.filterEquals((Intent) actual);
-            }
-            @Override
-            public void describeTo(Description description) {
-                description.appendText(expected.toString());
-            }
-        };
-        return argThat(m);
-    }
-}
diff --git a/data/etc/Android.bp b/data/etc/Android.bp
index df51871..d0c3e5f 100644
--- a/data/etc/Android.bp
+++ b/data/etc/Android.bp
@@ -171,12 +171,6 @@
     filename_from_src: true,
 }
 
-prebuilt_etc {
-    name: "com.android.timezone.updater.xml",
-    sub_dir: "permissions",
-    src: "com.android.timezone.updater.xml",
-}
-
 filegroup {
     name: "services.core.protolog.json",
     srcs: ["services.core.protolog.json"],
diff --git a/data/etc/com.android.timezone.updater.xml b/data/etc/com.android.timezone.updater.xml
deleted file mode 100644
index 60a66e2..0000000
--- a/data/etc/com.android.timezone.updater.xml
+++ /dev/null
@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (C) 2018 The Android Open Source Project
-  ~
-  ~ Licensed under the Apache License, Version 2.0 (the "License");
-  ~ you may not use this file except in compliance with the License.
-  ~ You may obtain a copy of the License at
-  ~
-  ~      http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License
-  -->
-<permissions>
-    <privapp-permissions package="com.android.timezone.updater">
-        <permission name="android.permission.QUERY_TIME_ZONE_RULES" />
-        <permission name="android.permission.UPDATE_TIME_ZONE_RULES" />
-    </privapp-permissions>
-</permissions>