Remove animate hide.

Remove call to opacity change on hide (which has been removed.)

Bug: 14471388
Change-Id: I13a94ebd2ffb719b80afefe0847801cc63484a3a
diff --git a/InCallUI/src/com/android/incallui/DialpadFragment.java b/InCallUI/src/com/android/incallui/DialpadFragment.java
index df1681c..671968d 100644
--- a/InCallUI/src/com/android/incallui/DialpadFragment.java
+++ b/InCallUI/src/com/android/incallui/DialpadFragment.java
@@ -492,10 +492,8 @@
     @Override
     public void onHiddenChanged(boolean hidden) {
         super.onHiddenChanged(hidden);
-        final DialpadView dialpadView = (DialpadView) getView().findViewById(R.id.dialpad_view);
-        if (hidden) {
-            dialpadView.animateHide();
-        } else {
+        if (!hidden) {
+            final DialpadView dialpadView = (DialpadView) getView().findViewById(R.id.dialpad_view);
             dialpadView.animateShow();
         }
     }