Fix regression which was causing requestLayout in layout pass

-> This caused funky layout issues with views not appearing
   on devices prior to K in addition to log spam.

issue 17282728

Change-Id: Id05856ba2ef3de3a8a636ba9b4b46ddef3eff75e

src/com/android/launcher3/AppsCustomizeCellLayout.java

@@ -68,4 +68,4 @@ public class AppsCustomizeCellLayout extends CellLayout implements Page {
             children.getChildAt(j).setOnKeyListener(null);
         }
     }
-}
+}