Update app.js

@@ -71,9 +71,9 @@ app.set('json replacer', function(key, value) {
 });
 
 // 请求限制中间件
-#if (!app.locals.devEnv) {
-#    app.use(require('./doraemon/middleware/limiter'));
-#}
+//if (!app.locals.devEnv) {
+//    app.use(require('./doraemon/middleware/limiter'));
+//}
 
 // 指定libray目录
 global.utils = path.resolve('./utils');