fix: proper error message when login with wechat fails (#4000)

* fix typo

it should be weixin not qq.

* change error message from weixin to wechat

* remove unnecessary check

src/Adapters/Auth/vkontakte.js

@@ -9,7 +9,7 @@ var logger = require('../../logger').default;
 // Returns a promise that fulfills iff this user id is valid.
 function validateAuthData(authData, params) {
   return vkOAuth2Request(params).then(function (response) {
-    if (response && response && response.access_token) {
+    if (response && response.access_token) {
       return request("api.vk.com", "method/secure.checkToken?token=" + authData.access_token + "&client_secret=" + params.appSecret + "&access_token=" + response.access_token).then(function (response) {
         if (response && response.response && response.response.user_id == authData.id) {
           return;

src/Adapters/Auth/wechat.js

@@ -8,7 +8,7 @@ function validateAuthData(authData) {
     if (data.errcode == 0) {
       return;
     }
-    throw new Parse.Error(Parse.Error.OBJECT_NOT_FOUND, 'qq auth is invalid for this user.');
+    throw new Parse.Error(Parse.Error.OBJECT_NOT_FOUND, 'wechat auth is invalid for this user.');
   });
 }
 
@@ -34,7 +34,7 @@ function graphRequest(path) {
         resolve(data);
       });
     }).on('error', function () {
-      reject('Failed to validate this access token with weixin.');
+      reject('Failed to validate this access token with wechat.');
     });
   });
 }