private function remove_all_submenu_items() {
			global $submenu;

			$menu_slug = $this->get_raw_slug();

			if ( ! isset( $submenu[ $menu_slug ] ) ) {
				return false;
			}

			/**
			 * This method is NOT executed for WordPress.org themes.
			 * Since we maintain only one version of the SDK we added this small
			 * hack to avoid the error from Theme Check since it's a false-positive.
			 *
			 * @author Vova Feldman (@svovaf)
			 * @since  1.2.2.7
			 */
			$submenu_ref               = &$submenu;
			$submenu_ref[ $menu_slug ] = array();

			return true;
		}