Как убрать role=list в wordpress?

switch ( $args['format'] ) {
		case 'array' :
			$return =& $a;
			break;
		case 'list' :
			/*
			 * Force role="list", as some browsers (sic: Safari 10) don't expose to assistive
			 * technologies the default role when the list is styled with `list-style: none`.
			 * Note: this is redundant but doesn't harm.
			 */
			$return = "<ul class='wp-tag-cloud' role='list'>\n\t<li>";
			$return .= join( "</li>\n\t<li>", $a );
			$return .= "</li>\n</ul>\n";
			break;
		default :
			$return = join( $args['separator'], $a );
			break;
	}