Fix warnings and remove dead code

Change-Id: I574d823fedf4b752c3df5a72599b390f708823ac

src/com/android/launcher2/PagedViewIcon.java

@@ -31,6 +31,7 @@ public class PagedViewIcon extends TextView {
         void iconPressed(PagedViewIcon icon);
     }
 
+    @SuppressWarnings("unused")
     private static final String TAG = "PagedViewIcon";
     private static final float PRESS_ALPHA = 0.4f;