Fix AnimatorListeners.forEndCallback()

Override onAnimationEnd(Animator), rather than (Animator, boolean)
which may not be called.

Test: Swipe right to quick switch from home, then swipe back left
(in the same gesture), ensure next quick switch isn't broken.
Bug: 185554764

Change-Id: I53e7526ed5b55fbae9aa654ace70a6ef7561e1d8
diff --git a/src/com/android/launcher3/anim/AnimatorListeners.java b/src/com/android/launcher3/anim/AnimatorListeners.java
index 57c2f8d..d9046b9 100644
--- a/src/com/android/launcher3/anim/AnimatorListeners.java
+++ b/src/com/android/launcher3/anim/AnimatorListeners.java
@@ -50,7 +50,7 @@
     public static AnimatorListener forEndCallback(Runnable callback) {
         return new AnimatorListenerAdapter() {
             @Override
-            public void onAnimationEnd(Animator animation, boolean isReverse) {
+            public void onAnimationEnd(Animator animation) {
                 callback.run();
             }
         };