Remove old code from DisplaySettings not used in new IA.

- removed the old display settings xml
- merge DisplayDashboard metadata into DisplaySettingsActivity instead
and remove DisplayDashboard.

Bug: 35764802
Test: make RunSettingsRoboTests
Change-Id: I9280c9b5c586acd9d97602b0fb12025fafca8af5
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 4cc7bf0..2549f61 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -904,15 +904,17 @@
                 <category android:name="android.intent.category.VOICE_LAUNCH" />
                 <category android:name="com.android.settings.SHORTCUT" />
             </intent-filter>
-            <intent-filter android:priority="9">
+            <intent-filter android:priority="7">
                 <action android:name="com.android.settings.action.SETTINGS" />
             </intent-filter>
             <meta-data android:name="com.android.settings.category"
-                android:value="com.android.settings.category.device" />
+                android:value="com.android.settings.category.ia.homepage" />
             <meta-data android:name="com.android.settings.FRAGMENT_CLASS"
                 android:value="com.android.settings.DisplaySettings" />
             <meta-data android:name="com.android.settings.PRIMARY_PROFILE_CONTROLLED"
                 android:value="true" />
+            <meta-data android:name="com.android.settings.summary"
+                android:value="@string/display_dashboard_summary"/>
         </activity>
 
         <!-- Keep compatibility with old shortcuts. -->
@@ -3055,21 +3057,6 @@
                        android:value="com.android.settings.category.ia.homepage"/>
         </activity-alias>
 
-        <activity-alias android:name="DisplayDashboardAlias"
-                        android:targetActivity="Settings$DisplaySettingsActivity">
-            <intent-filter android:priority="7">
-                <action android:name="com.android.settings.action.SETTINGS" />
-            </intent-filter>
-            <meta-data android:name="com.android.settings.category"
-                       android:value="com.android.settings.category.ia.homepage" />
-            <meta-data android:name="com.android.settings.FRAGMENT_CLASS"
-                       android:value="com.android.settings.DisplaySettings" />
-            <meta-data android:name="com.android.settings.PRIMARY_PROFILE_CONTROLLED"
-                       android:value="true" />
-            <meta-data android:name="com.android.settings.summary"
-                       android:value="@string/display_dashboard_summary"/>
-        </activity-alias>
-
         <activity-alias android:name="SoundDashboardAlias"
                         android:targetActivity="Settings$SoundSettingsActivity"
                         android:icon="@drawable/ic_dashboard_sound">
diff --git a/res/xml/display_settings.xml b/res/xml/display_settings.xml
deleted file mode 100644
index 2632c78..0000000
--- a/res/xml/display_settings.xml
+++ /dev/null
@@ -1,119 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2010 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.
--->
-
-<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
-                  xmlns:settings="http://schemas.android.com/apk/res/com.android.settings"
-        android:title="@string/display_settings"
-        settings:keywords="@string/keywords_display">
-
-        <Preference
-                android:key="brightness"
-                android:title="@string/brightness"
-                settings:keywords="@string/keywords_display_brightness_level">
-            <intent android:action="android.intent.action.SHOW_BRIGHTNESS_DIALOG" />
-        </Preference>
-
-        <SwitchPreference
-                android:key="auto_brightness"
-                android:title="@string/auto_brightness_title"
-                settings:keywords="@string/keywords_display_auto_brightness"
-                android:summary="@string/auto_brightness_summary" />
-
-        <com.android.settings.display.NightDisplayPreference
-                android:key="night_display"
-                android:title="@string/night_display_title"
-                android:fragment="com.android.settings.display.NightDisplaySettings"
-                settings:widgetLayout="@null"
-                settings:keywords="@string/keywords_display_night_display" />
-
-        <!-- Hide night mode for now
-        <ListPreference
-            android:key="night_mode"
-            android:title="@string/night_mode_title"
-            settings:keywords="@string/keywords_display_night_mode"
-            android:summary="@string/night_mode_summary"
-            android:entries="@array/night_mode_entries"
-            android:entryValues="@array/night_mode_values" /> -->
-
-        <com.android.settingslib.RestrictedPreference
-                android:key="wallpaper"
-                android:title="@string/wallpaper_settings_title"
-                settings:keywords="@string/keywords_display_wallpaper"
-                settings:useAdminDisabledSummary="true" >
-                <intent
-                        android:targetPackage="@string/config_wallpaper_picker_package"
-                        android:targetClass="@string/config_wallpaper_picker_class" />
-        </com.android.settingslib.RestrictedPreference>
-
-        <com.android.settings.TimeoutListPreference
-                android:key="screen_timeout"
-                android:title="@string/screen_timeout"
-                android:summary="@string/screen_timeout_summary"
-                android:entries="@array/screen_timeout_entries"
-                android:entryValues="@array/screen_timeout_values" />
-
-        <SwitchPreference
-                android:key="camera_gesture"
-                android:title="@string/camera_gesture_title"
-                android:summary="@string/camera_gesture_desc" />
-
-        <Preference
-                android:key="screensaver"
-                android:title="@string/screensaver_settings_title"
-                android:fragment="com.android.settings.DreamSettings" />
-
-        <SwitchPreference
-                android:key="lift_to_wake"
-                android:title="@string/lift_to_wake_title" />
-
-        <SwitchPreference
-                android:key="doze"
-                android:title="@string/doze_title"
-                android:summary="@string/doze_summary" />
-
-        <SwitchPreference
-                android:key="tap_to_wake"
-                android:title="@string/tap_to_wake"
-                android:summary="@string/tap_to_wake_summary" />
-
-        <Preference
-                android:key="font_size"
-                android:title="@string/title_font_size"
-                android:fragment="com.android.settings.accessibility.ToggleFontSizePreferenceFragment"
-                settings:keywords="@string/keywords_display_font_size" />
-
-        <com.android.settings.display.ScreenZoomPreference
-                android:key="screen_zoom"
-                android:title="@string/screen_zoom_title"
-                settings:keywords="@string/screen_zoom_keywords" />
-
-        <DropDownPreference
-                android:key="auto_rotate"
-                android:summary="%s"
-                android:title="@string/display_auto_rotate_title" />
-
-        <Preference
-                android:key="wifi_display"
-                android:title="@string/wifi_display_settings_title"
-                settings:keywords="@string/keywords_display_cast_screen"
-                android:fragment="com.android.settings.wfd.WifiDisplaySettings" />
-
-        <DropDownPreference
-                android:key="vr_display_pref"
-                android:summary="%s"
-                android:title="@string/display_vr_pref_title" />
-
-</PreferenceScreen>
diff --git a/src/com/android/settings/DisplaySettings.java b/src/com/android/settings/DisplaySettings.java
index aa17499..1e0547b 100644
--- a/src/com/android/settings/DisplaySettings.java
+++ b/src/com/android/settings/DisplaySettings.java
@@ -64,11 +64,7 @@
 
     @Override
     protected int getPreferenceScreenResId() {
-        if (mDashboardFeatureProvider.isEnabled()) {
-            return R.xml.ia_display_settings;
-        } else {
-            return R.xml.display_settings;
-        }
+        return R.xml.ia_display_settings;
     }
 
     @Override
@@ -104,14 +100,7 @@
                     final ArrayList<SearchIndexableResource> result = new ArrayList<>();
 
                     final SearchIndexableResource sir = new SearchIndexableResource(context);
-                    final boolean useNewIA = FeatureFactory.getFactory(context)
-                            .getDashboardFeatureProvider(context)
-                            .isEnabled();
-                    if (useNewIA) {
-                        sir.xmlResId = R.xml.ia_display_settings;
-                    } else {
-                        sir.xmlResId = R.xml.display_settings;
-                    }
+                    sir.xmlResId = R.xml.ia_display_settings;
                     result.add(sir);
                     return result;
                 }
diff --git a/src/com/android/settings/core/gateway/SettingsGateway.java b/src/com/android/settings/core/gateway/SettingsGateway.java
index 8379d34..e0bb8bc 100644
--- a/src/com/android/settings/core/gateway/SettingsGateway.java
+++ b/src/com/android/settings/core/gateway/SettingsGateway.java
@@ -283,7 +283,6 @@
             Settings.ConnectedDeviceDashboardActivity.class.getName(),
             Settings.AppAndNotificationDashboardActivity.class.getName(),
             "com.android.settings.BatteryDashboardAlias",
-            "com.android.settings.DisplayDashboardAlias",
             "com.android.settings.SoundDashboardAlias",
             "com.android.settings.SecurityDashboardAlias",
             "com.android.settings.UsersDashboardAlias",