     //  Methods: Access to overridden methods of base classes
     //
     //--------------------------------------------------------------------------
-
-    /**
-     *  @private
-     *  This method allows access to the base class's implementation
-     *  of removeChild() (UIComponent's version), which can be useful since components
-     *  can override removeChild() and thereby hide the native implementation.  For 
-     *  instance, we override removeChild() here to throw an RTE to discourage people
-     *  from using this method.  We need this method so we can remove children
-     *  that were previously attached to another DataGroup (see addItemToDisplayList).
-     */
-    private function _removeChild(child:DisplayObject):DisplayObject
-    {
-        return super.removeChild(child);
-    }
     
     /**
      *  @inheritDoc

                {
                    elt = freeRenderers.pop();
                    elt.visible = true;
                    if (elt is UIComponent)
                        UIComponent(elt).includeInLayout = true;
                    if (elt is IDataRenderer)
                        IDataRenderer(elt).data = item;
                    recycledIR = true;


            return child;
        }

        if ((_layeringFlags & LAYERING_ENABLED) || 
            (child is IVisualElement && (child as IVisualElement).layer != 0))
