Fixing long-press issue due to child hit-rect offset.

- Removing some unused code

Change-Id: I875e3b27372c4c507e4bbc2d36b16eba077e2121
diff --git a/src/com/android/launcher2/AllAppsBackground.java b/src/com/android/launcher2/AllAppsBackground.java
index 5292d0a..51e1ee4 100644
--- a/src/com/android/launcher2/AllAppsBackground.java
+++ b/src/com/android/launcher2/AllAppsBackground.java
@@ -25,8 +25,8 @@
 import android.view.View;
 
 /**
- * An implementation of PagedView that populates the pages of the workspace
- * with all of the user's applications.
+ * The background for AllApps which moves independently of the AllApps tray (for example, when we
+ * transition between AllApps and the Workspace while in spring-loaded mode).
  */
 public class AllAppsBackground extends View {
     private Drawable mBackground;