Revert "Handle package broadcasts before apps do"

And fix b/29939691 (don't try to load locked users) in a different way

Bug 29939691
Bug 29895275

Change-Id: Ib55f9c5d5547c54daa4e05c1e50bf4bbceaf1991

core/java/android/content/pm/ShortcutServiceInternal.java

@@ -73,11 +73,4 @@ public abstract class ShortcutServiceInternal {
      * any locks in this method.
      */
     public abstract void onSystemLocaleChangedNoLock();
-
-    /**
-     * Called by PM before sending package broadcasts to other components.  PM doesn't hold the PM
-     * lock, but do not take any locks in here anyway, and don't do any heavy tasks, as doing so
-     * would slow down all the package broadcasts.
-     */
-    public abstract void onPackageBroadcast(Intent intent);
 }