question: removes this push event listener from the push notifications concode_field_sep IcePushClientLibrary icePushClient concode_elem_sep GWTPushContext instance concode_field_sep GWTPushContext getInstance concode_elem_sep void addPushEventListener concode_elem_sep void addPushEventListener
target: void function ( PushEventListener arg0 ) { icePushClient . unregisterUserCallbacks ( arg0 ) ; icePushClient . deregister ( arg0 . getPushId ( ) ) ; icePushClient . removeGroupMember ( arg0 . getGroup ( ) , arg0 . getPushId ( ) ) ; }