Fix OOM issue of InCallUI

CallButtonPresenter didn't remove
itself from InCallPresenter(CanAddCallListener).

Change-Id: I2ad979d9eebeb110b03e5a1c103d7a4f98e317c0
Signed-off-by: Alex Naidis <alex.naidis@linux.com>
diff --git a/InCallUI/src/com/android/incallui/CallCardFragment.java b/InCallUI/src/com/android/incallui/CallCardFragment.java
index 1c4890b..dc9c8eb 100644
--- a/InCallUI/src/com/android/incallui/CallCardFragment.java
+++ b/InCallUI/src/com/android/incallui/CallCardFragment.java
@@ -1498,6 +1498,9 @@
                         setViewStatePostAnimation(listener);
                         mIsAnimating = false;
                         InCallPresenter.getInstance().onShrinkAnimationComplete();
+                        if (animator != null) {
+                            animator.removeListener(this);
+                        }
                     }
                 });
                 animator.start();