Removed stub implementation of ADD_DEVICE_ADMIN.

CarSettings now implements it.

Test: adb shell pm query-activities --brief --user cur -a android.app.action.ADD_DEVICE_ADMIN
Test: adb shell am start --ecn android.app.extra.DEVICE_ADMIN com.afwsamples.testdpc/.DeviceAdminReceiver -a android.app.action.ADD_DEVICE_ADMIN

Bug: 186788948
Bug: 188585303

Change-Id: I35d8217a4f8d94a49755a7b65743daf95b796085
diff --git a/FrameworkPackageStubs/AndroidManifest.xml b/FrameworkPackageStubs/AndroidManifest.xml
index 44a114b..885c9d7 100644
--- a/FrameworkPackageStubs/AndroidManifest.xml
+++ b/FrameworkPackageStubs/AndroidManifest.xml
@@ -90,10 +90,6 @@
              android:excludeFromRecents="true"
              android:exported="true">
             <intent-filter android:priority="-1">
-                <action android:name="android.app.action.ADD_DEVICE_ADMIN"/>
-                <category android:name="android.intent.category.DEFAULT"/>
-            </intent-filter>
-            <intent-filter android:priority="-1">
                 <action android:name="android.settings.ACCESSIBILITY_SETTINGS"/>
                 <category android:name="android.intent.category.DEFAULT"/>
             </intent-filter>
diff --git a/tests/EmbeddedKitchenSinkApp/src/com/google/android/car/kitchensink/admin/DevicePolicyFragment.java b/tests/EmbeddedKitchenSinkApp/src/com/google/android/car/kitchensink/admin/DevicePolicyFragment.java
index d15ec55..f71e57f 100644
--- a/tests/EmbeddedKitchenSinkApp/src/com/google/android/car/kitchensink/admin/DevicePolicyFragment.java
+++ b/tests/EmbeddedKitchenSinkApp/src/com/google/android/car/kitchensink/admin/DevicePolicyFragment.java
@@ -330,12 +330,7 @@
         }
         Log.v(TAG, "setAdminApp(): index=" + index + ",size=" + mDeviceAdminApps.size() + ",app="
                 + app);
-        // TODO(188585303): use ACTION_ADD_DEVICE_ADMIN
-//        Intent intent = new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN)
-//                .putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, app.admin);
-        Intent intent = new Intent()
-                .setComponent(new ComponentName("com.android.car.settings",
-                        "com.android.car.settings.enterprise.DeviceAdminAddActivity"))
+        Intent intent = new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN)
                 .putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, app.admin);
         Log.i(TAG, "launching intent " + intent + " for " + app);
         getActivity().startActivity(intent);