destoon未授权，如何去掉弹出授权购买提示

在/admin/index.inc.php第178行去掉以下代码

$notice_url = base64_decode('aHR0cHM6Ly93d3cuZGVzdG9vbi5jb20vY2xpZW50LnBocD9hY3Rpb249bm90aWNlJnByb2R1Y3Q9YjJiJnZlcnNpb249').DT_VERSION.'&release='.DT_RELEASE.'&lang='.DT_LANG.'&charset='.DT_CHARSET.'&domain='.DT_DOMAIN.'&install='.$install.'&os='.PHP_OS.'&soft='.urlencode($_SERVER['SERVER_SOFTWARE']).'&php='.urlencode(phpversion()).'&mysql='.urlencode($db->version()).'&url='.urlencode($DT_URL).'&site='.urlencode($DT['sitename']).'&auth='.strtoupper(md5($DT_URL.$install.$_SERVER['SERVER_SOFTWARE']));