diff --git a/keystore2/aidl/Android.bp b/keystore2/aidl/Android.bp
index c297a15..ae3fb18 100644
--- a/keystore2/aidl/Android.bp
+++ b/keystore2/aidl/Android.bp
@@ -22,25 +22,6 @@
 }
 
 aidl_interface {
-    name: "android.security.attestationmanager",
-    srcs: ["android/security/attestationmanager/*.aidl"],
-    imports: ["android.hardware.security.keymint-V3"],
-    unstable: true,
-    backend: {
-        java: {
-            platform_apis: true,
-        },
-        rust: {
-            enabled: true,
-        },
-        ndk: {
-            enabled: true,
-            apps_enabled: false,
-        },
-    },
-}
-
-aidl_interface {
     name: "android.security.authorization",
     srcs: ["android/security/authorization/*.aidl"],
     imports: [
diff --git a/keystore2/aidl/android/security/attestationmanager/ByteArray.aidl b/keystore2/aidl/android/security/attestationmanager/ByteArray.aidl
deleted file mode 100644
index dc37b1b..0000000
--- a/keystore2/aidl/android/security/attestationmanager/ByteArray.aidl
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright (C) 2020 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.security.attestationmanager;
-
-/**
- * Simple data holder for a byte array, allowing for multidimensional arrays in AIDL.
- * @hide
- */
-parcelable ByteArray {
-    byte[] data;
-}
\ No newline at end of file
diff --git a/keystore2/aidl/android/security/attestationmanager/IAttestationManager.aidl b/keystore2/aidl/android/security/attestationmanager/IAttestationManager.aidl
deleted file mode 100644
index e77a21e..0000000
--- a/keystore2/aidl/android/security/attestationmanager/IAttestationManager.aidl
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright (C) 2020 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.security.attestationmanager;
-
-import android.security.attestationmanager.ByteArray;
-import android.hardware.security.keymint.KeyParameter;
-
-/**
- * Internal interface for performing device attestation.
- * @hide
- */
-interface IAttestationManager {
-    /**
-     * Attest a provided list of device identifiers.
-     *
-     * @return The signed certificate chain, with each individual certificate encoded as a byte
-     *         array.
-     */
-    ByteArray[] attestDevice(
-            in KeyParameter[] deviceIdentifiers, boolean useIndividualAttestation,
-            in byte[] attestationChallenge, int securityLevel);
-}
\ No newline at end of file