一些没用的配置删掉

application/chat/Events.php

@@ -25,7 +25,7 @@
  */
 use \GatewayWorker\Lib\Gateway;
 //use \GatewayWorker\Lib\DbConnection;
-use think\Db;
+//use think\Db;
 use think\App;
 
 class Events