diff --git a/services/core/java/com/android/server/pm/AppDataHelper.java b/services/core/java/com/android/server/pm/AppDataHelper.java
index c24bfec5fb43d..5013570fa6b81 100644
--- a/services/core/java/com/android/server/pm/AppDataHelper.java
+++ b/services/core/java/com/android/server/pm/AppDataHelper.java
@@ -36,7 +36,6 @@ import android.os.storage.StorageManagerInternal;
 import android.os.storage.VolumeInfo;
 import android.security.AndroidKeyStoreMaintenance;
 import android.system.keystore2.Domain;
-import android.system.keystore2.KeyDescriptor;
 import android.text.TextUtils;
 import android.util.Log;
 import android.util.Slog;
@@ -555,26 +554,6 @@ final class AppDataHelper {
         return prepareAppDataFuture;
     }
 
-    public void migrateKeyStoreData(int previousAppId, int appId) {
-        // If previous UID is system UID, declaring inheritKeyStoreKeys is not supported.
-        // Silently ignore the request to migrate keys.
-        if (previousAppId == Process.SYSTEM_UID) return;
-
-        for (int userId : mPm.resolveUserIds(UserHandle.USER_ALL)) {
-            int srcUid = UserHandle.getUid(userId, previousAppId);
-            int destUid = UserHandle.getUid(userId, appId);
-            final KeyDescriptor[] keys = AndroidKeyStoreMaintenance.listEntries(Domain.APP, srcUid);
-            if (keys == null) continue;
-            for (final KeyDescriptor key : keys) {
-                KeyDescriptor dest = new KeyDescriptor();
-                dest.domain = Domain.APP;
-                dest.nspace = destUid;
-                dest.alias = key.alias;
-                AndroidKeyStoreMaintenance.migrateKeyNamespace(key, dest);
-            }
-        }
-    }
-
     void clearAppDataLIF(AndroidPackage pkg, int userId, int flags) {
         if (pkg == null) {
             return;
diff --git a/services/core/java/com/android/server/pm/pkg/parsing/ParsingPackage.java b/services/core/java/com/android/server/pm/pkg/parsing/ParsingPackage.java
index f6f9faf98c40a..cbba346ce7b81 100644
--- a/services/core/java/com/android/server/pm/pkg/parsing/ParsingPackage.java
+++ b/services/core/java/com/android/server/pm/pkg/parsing/ParsingPackage.java
@@ -287,9 +287,6 @@ public interface ParsingPackage extends ParsingPackageRead {
 
     ParsingPackage setInstallLocation(int installLocation);
 
-    /** @see R#styleable.AndroidManifest_inheritKeyStoreKeys */
-    ParsingPackage setInheritKeyStoreKeys(boolean inheritKeyStoreKeys);
-
     /** @see R#styleable.AndroidManifest_sharedUserMaxSdkVersion */
     ParsingPackage setLeavingSharedUid(boolean leavingSharedUid);
 
diff --git a/services/core/java/com/android/server/pm/pkg/parsing/ParsingPackageImpl.java b/services/core/java/com/android/server/pm/pkg/parsing/ParsingPackageImpl.java
index 67670272ef8b0..1484df8ece14a 100644
--- a/services/core/java/com/android/server/pm/pkg/parsing/ParsingPackageImpl.java
+++ b/services/core/java/com/android/server/pm/pkg/parsing/ParsingPackageImpl.java
@@ -494,7 +494,6 @@ public class ParsingPackageImpl implements ParsingPackage, ParsingPackageHidden,
                 ATTRIBUTIONS_ARE_USER_VISIBLE,
                 RESET_ENABLED_SETTINGS_ON_APP_DATA_CLEARED,
                 SDK_LIBRARY,
-                INHERIT_KEYSTORE_KEYS,
         })
         public @interface Values {}
         private static final long EXTERNAL_STORAGE = 1L;
@@ -547,9 +546,8 @@ public class ParsingPackageImpl implements ParsingPackage, ParsingPackageHidden,
         private static final long ATTRIBUTIONS_ARE_USER_VISIBLE = 1L << 47;
         private static final long RESET_ENABLED_SETTINGS_ON_APP_DATA_CLEARED = 1L << 48;
         private static final long SDK_LIBRARY = 1L << 49;
-        private static final long INHERIT_KEYSTORE_KEYS = 1L << 50;
-        private static final long ENABLE_ON_BACK_INVOKED_CALLBACK = 1L << 51;
-        private static final long LEAVING_SHARED_UID = 1L << 52;
+        private static final long ENABLE_ON_BACK_INVOKED_CALLBACK = 1L << 50;
+        private static final long LEAVING_SHARED_UID = 1L << 51;
     }
 
     private ParsingPackageImpl setBoolean(@Booleans.Values long flag, boolean value) {
@@ -2393,11 +2391,6 @@ public class ParsingPackageImpl implements ParsingPackage, ParsingPackageHidden,
                 : mKnownActivityEmbeddingCerts;
     }
 
-    @Override
-    public boolean shouldInheritKeyStoreKeys() {
-        return getBoolean(Booleans.INHERIT_KEYSTORE_KEYS);
-    }
-
     @Override
     public boolean isOnBackInvokedCallbackEnabled() {
         return getBoolean(Booleans.ENABLE_ON_BACK_INVOKED_CALLBACK);
@@ -2551,11 +2544,6 @@ public class ParsingPackageImpl implements ParsingPackage, ParsingPackageHidden,
         return this;
     }
 
-    @Override
-    public ParsingPackageImpl setInheritKeyStoreKeys(boolean value) {
-        return setBoolean(Booleans.INHERIT_KEYSTORE_KEYS, value);
-    }
-
     @Override
     public ParsingPackageImpl setLeavingSharedUid(boolean value) {
         return setBoolean(Booleans.LEAVING_SHARED_UID, value);
diff --git a/services/core/java/com/android/server/pm/pkg/parsing/ParsingPackageRead.java b/services/core/java/com/android/server/pm/pkg/parsing/ParsingPackageRead.java
index 50033f652bfd1..20b1ed8d0c3e7 100644
--- a/services/core/java/com/android/server/pm/pkg/parsing/ParsingPackageRead.java
+++ b/services/core/java/com/android/server/pm/pkg/parsing/ParsingPackageRead.java
@@ -351,11 +351,6 @@ public interface ParsingPackageRead extends PkgWithoutStateAppInfo, PkgWithoutSt
      */
     int getLocaleConfigRes();
 
-    /**
-     * @see R.styleable#AndroidManifest_inheritKeyStoreKeys
-     */
-    boolean shouldInheritKeyStoreKeys();
-
     /**
      * @see R.styleable.AndroidManifestApplication_enableOnBackInvokedCallback
      */
diff --git a/services/core/java/com/android/server/pm/pkg/parsing/ParsingPackageUtils.java b/services/core/java/com/android/server/pm/pkg/parsing/ParsingPackageUtils.java
index 3eaca9dddcc41..112b9e070d284 100644
--- a/services/core/java/com/android/server/pm/pkg/parsing/ParsingPackageUtils.java
+++ b/services/core/java/com/android/server/pm/pkg/parsing/ParsingPackageUtils.java
@@ -894,9 +894,7 @@ public class ParsingPackageUtils {
                 .setTargetSandboxVersion(anInteger(PARSE_DEFAULT_TARGET_SANDBOX,
                         R.styleable.AndroidManifest_targetSandboxVersion, sa))
                 /* Set the global "on SD card" flag */
-                .setExternalStorage((flags & PARSE_EXTERNAL_STORAGE) != 0)
-                .setInheritKeyStoreKeys(bool(false,
-                        R.styleable.AndroidManifest_inheritKeyStoreKeys, sa));
+                .setExternalStorage((flags & PARSE_EXTERNAL_STORAGE) != 0);
 
         boolean foundApp = false;
         final int depth = parser.getDepth();
diff --git a/services/tests/PackageManagerServiceTests/unit/src/com/android/server/pm/test/parsing/parcelling/AndroidPackageTest.kt b/services/tests/PackageManagerServiceTests/unit/src/com/android/server/pm/test/parsing/parcelling/AndroidPackageTest.kt
index 83ccabf039359..8f81e930d0cdc 100644
--- a/services/tests/PackageManagerServiceTests/unit/src/com/android/server/pm/test/parsing/parcelling/AndroidPackageTest.kt
+++ b/services/tests/PackageManagerServiceTests/unit/src/com/android/server/pm/test/parsing/parcelling/AndroidPackageTest.kt
@@ -505,11 +505,6 @@ class AndroidPackageTest : ParcelableComponentTest(AndroidPackage::class, Packag
                 )
             }
         ),
-        getSetByValue(
-            AndroidPackage::shouldInheritKeyStoreKeys,
-            ParsingPackage::setInheritKeyStoreKeys,
-            true
-        ),
         getter(AndroidPackage::getKnownActivityEmbeddingCerts, setOf("TESTEMBEDDINGCERT")),
         getSetByValue(
             AndroidPackage::isOnBackInvokedCallbackEnabled,