function delete() {
            $option_name = $this->get_option_manager_name();

            if ( $this->_is_network_storage ) {
                delete_site_option( $option_name );
            } else if ( $this->_blog_id > 0 ) {
                delete_blog_option( $this->_blog_id, $option_name );
            } else {
                delete_option( $option_name );
            }
        }