去除老的_YOHOUID、_YOHOTOKEN先关逻辑

@@ -4,15 +4,6 @@ const config = global.yoho.config;
 
 module.exports = () => {
     return (req, res, next) => {
-        const uid = req.cookies._YOHOUID;
-        const token = req.cookies._YOHOTOKEN;
-        const key = `-_-!!!${uid}!!!-_-`;
-
-        if (md5(key) === token) {
-            req.user.uid = uid;
-            delete req.cookies._YOHOUID;
-        }
-
         // app 内处理
         if (req.yoho.isApp) {
             if (req.cookies.app_uid &&