Revert "PLT-1800 Load server side locale from the config.json (#3076)"

This reverts commit 34beaa569b.

webapp/stores/user_store.jsx

@@ -4,9 +4,6 @@
 import AppDispatcher from '../dispatcher/app_dispatcher.jsx';
 import EventEmitter from 'events';
 
-import * as GlobalActions from 'action_creators/global_actions.jsx';
-import LocalizationStore from './localization_store.jsx';
-
 import Constants from 'utils/constants.jsx';
 const ActionTypes = Constants.ActionTypes;
 
@@ -103,9 +100,6 @@ class UserStoreClass extends EventEmitter {
         this.saveProfile(user);
         this.currentUserId = user.id;
         global.window.mm_current_user_id = this.currentUserId;
-        if (LocalizationStore.getLocale() !== user.locale) {
-            GlobalActions.newLocalizationSelected(user.locale);
-        }
     }
 
     getCurrentId() {