Fix issue #2296457: PackageManager.addPackageToPreferred needs to a no-op

Change-Id: I0d8f75938226e1bb49cf7b1154445631b0bb0bc9
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 1c3cf3c..0d03ff2 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -597,11 +597,9 @@
         android:label="@string/permlab_getPackageSize"
         android:description="@string/permdesc_getPackageSize" />
 
-    <!-- Allows an application to modify the list of preferred applications
-         with the {@link android.content.pm.PackageManager#addPackageToPreferred
-         PackageManager.addPackageToPreferred()} and
-         {@link android.content.pm.PackageManager#removePackageFromPreferred
-         PackageManager.removePackageFromPreferred()} methods. -->
+    <!-- @deprecated No longer useful, see
+         {@link android.content.pm.PackageManager#addPackageToPreferred}
+         for details. -->
     <permission android:name="android.permission.SET_PREFERRED_APPLICATIONS"
         android:permissionGroup="android.permission-group.SYSTEM_TOOLS"
         android:protectionLevel="dangerous"