去掉code 兼容

 {
   "name": "yas-jssdk",
-  "version": "2.3.4",
+  "version": "2.3.5",
   "description": "YOHO!采集系统的前端js的开发包",
   "keywords": [
     "YOHO!",

@@ -359,7 +359,7 @@ function setMktc() {
 }
 
 function getMktc() {
-  var mktc = cookies('mkt_code') || window.qs.mkt_code || window.qs.union_type || window.qs.code; // window.qs.code 兼容老url
+  var mktc = cookies('mkt_code') || window.qs.mkt_code || window.qs.union_type;
   if (mktc) {
     return {
       mktc: mktc