remove extra set of transulcent on pixel format.

Change-Id: I2b6a16d8070a045e56e90fd073f63473b600ea90
diff --git a/src/com/android/launcher2/AllApps3D.java b/src/com/android/launcher2/AllApps3D.java
index 0e6994c..1279ff8 100644
--- a/src/com/android/launcher2/AllApps3D.java
+++ b/src/com/android/launcher2/AllApps3D.java
@@ -148,7 +148,6 @@
         super(context, attrs);
         setFocusable(true);
         setSoundEffectsEnabled(false);
-        getHolder().setFormat(PixelFormat.TRANSLUCENT);
         final ViewConfiguration config = ViewConfiguration.get(context);
         mSlop = config.getScaledTouchSlop();
         mMaxFlingVelocity = config.getScaledMaximumFlingVelocity();