Fix warnings and remove dead code

Change-Id: I574d823fedf4b752c3df5a72599b390f708823ac
diff --git a/src/com/android/launcher2/RocketLauncher.java b/src/com/android/launcher2/RocketLauncher.java
index 505ac4c..268769d 100644
--- a/src/com/android/launcher2/RocketLauncher.java
+++ b/src/com/android/launcher2/RocketLauncher.java
@@ -332,7 +332,7 @@
         protected void onAttachedToWindow() {
             super.onAttachedToWindow();
             setLayerType(View.LAYER_TYPE_HARDWARE, null);
-            setSystemUiVisibility(View.STATUS_BAR_HIDDEN);
+            setSystemUiVisibility(View.SYSTEM_UI_FLAG_LOW_PROFILE);
 
             reset();
             mAnim.start();