code: public boolean removeLayout(final Layout itemLayout) {
          boolean removed = false;
          if (itemLayout != null && mItemLayouts.remove(itemLayout)) {
              // remove the layout from all visible pages
              List<Widget>  views = getAllViews();
              for (Widget view: views) {
                  view.removeLayout(itemLayout);
              }
              removed = true;
          }
          return removed;
      }
docs: Remove the item layout {@link Layout} from the chain
  @param itemLayout {@link Layout} item layout
  @return true if layout has been removed successfully , false - otherwise