Remove a database operation that is not required

-> The item will be added to the database by the
   Folder, which is a FolderListener

Change-Id: I3f41e3ef58f5829bd0c834901bf239539eb9d0bc

src/com/android/launcher2/FolderIcon.java

@@ -303,7 +303,6 @@ public class FolderIcon extends LinearLayout implements FolderListener {
 
     public void addItem(ShortcutInfo item) {
         mInfo.add(item);
-        LauncherModel.addOrMoveItemInDatabase(mLauncher, item, mInfo.id, 0, item.cellX, item.cellY);
     }
 
     public void onDragEnter(Object dragInfo) {