Sometime, Settings app crash when AllowBindAppWidgetActivity closing

Process: com.android.settings
E AndroidRuntime: java.lang.RuntimeException:
Unable to destroy activity {com.android.settings/
com.android.settings.AllowBindAppWidgetActivity}:
java.lang.IllegalArgumentException: Receiver not registered:
android.app.Activity$1@5817135

Change-Id: I0f8b61f4c1772b43bffd949928ccaafd295f5fac
Signed-off-by: Mikhail Malakhov <malakhv@gmail.com>