Remove dead forwarding service

Author: ryosukeeeeee

docs/index.html

@@ -178,8 +178,6 @@
         // facebook-like distraction free mode
         distractionFreeMode: false,
         id: decodeURI(location.hash.split('?')[0]),
-        proxy:
-          'https://ifuckgfw.com:7788/https://github.com/login/oauth/access_token',
       };
       let gitalk = new Gitalk(props);
       // 哈希路由切换时 重新加载Gitalk