Refactoring to AnimatedEvent.

Change-Id: I87ce63201120dc687eccd63024801cc2c19bebd6
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsViewTouchHandler.java b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsViewTouchHandler.java
index 37a0194..318801d 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsViewTouchHandler.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsViewTouchHandler.java
@@ -188,12 +188,8 @@
             case MotionEvent.ACTION_UP:
             case MotionEvent.ACTION_CANCEL: {
                 if (mDragging) {
-                    ReferenceCountedTrigger postAnimationTrigger = new ReferenceCountedTrigger(
-                            mRv.getContext());
-                    postAnimationTrigger.increment();
                     EventBus.getDefault().send(new DragEndEvent(mDragTask, mTaskView,
-                            mLastDropTarget, postAnimationTrigger));
-                    postAnimationTrigger.decrement();
+                            mLastDropTarget));
                     break;
                 }
             }