statistic connection bytes before remove client.

@@ -210,9 +210,7 @@ int SrsRtmpConn::do_cycle()
     ret = service_cycle();
     
     http_hooks_on_close();
-    SrsStatistic* stat = SrsStatistic::instance();
-    stat->on_disconnect(_srs_context->get_id());
-    
+
     return ret;
 }
 

@@ -896,6 +896,7 @@ void SrsServer::remove(SrsConnection* conn)
     
     SrsStatistic* stat = SrsStatistic::instance();
     stat->kbps_add_delta(conn);
+    stat->on_disconnect(conn->srs_id());
     
     // all connections are created by server,
     // so we free it here.