refactor: 删除冗余代码

src/utils/request.js

@@ -146,10 +146,6 @@ export function statusCodesHandler(result, callback) {
     return $alert({ content: "密码错误" });
   }
 
-  if (result.code == statusCode.EXCEPTION) {
-    return !http.__loading && $alert({ content: `${result.msg}，请稍后再试` });
-  }
-
   if (result.code == statusCode.FAILURE_CODE_5001) {
     callback(result.code);
     return showLoginTips();
@@ -186,13 +182,11 @@ $.ajaxSetup({
   },
   success: function() {},
   complete: function(data) {
-    http.__loading = true;
   },
 });
 
 export const http = {
   statusCode,
-  __loading: true,
   __request(xhr, method, url, data, done, fail) {
     if (typeof done != "function") {
       done = noop;