Remove withLayer calls in Dialpad animation

Change-Id: I62ef51418e5ce3aaa454b27f6a6619d771de08fd
diff --git a/src/com/android/contacts/common/dialpad/DialpadView.java b/src/com/android/contacts/common/dialpad/DialpadView.java
index e1860aa..1b581e2 100644
--- a/src/com/android/contacts/common/dialpad/DialpadView.java
+++ b/src/com/android/contacts/common/dialpad/DialpadView.java
@@ -166,11 +166,8 @@
         for (int i = 0; i < mButtonIds.length; i++) {
             dialpadKey = (DialpadKeyButton) findViewById(mButtonIds[i]);
             dialpadKey.setTranslationY(translateDistance);
-            dialpadKey.setAlpha(0);
             dialpadKey.animate()
-                    .withLayer()
                     .translationY(0)
-                    .alpha(1.0f)
                     .setInterpolator(mButtonPathInterpolator)
                     .setStartDelay(getKeyButtonAnimationDelay(mButtonIds[i]))
                     .setDuration(getKeyButtonAnimationDuration(mButtonIds[i]));