fixed link issues

public/app/features/panellinks/link_srv.ts

@@ -2,7 +2,6 @@ import angular from 'angular';
 import _ from 'lodash';
 import kbn from 'app/core/utils/kbn';
 
-
 export class LinkSrv {
 
   /** @ngInject */

public/app/features/panellinks/module.js

 define([
   'angular',
   'lodash',
-  './linkSrv',
+  './link_srv',
 ],
 function (angular, _) {
   'use strict';

public/app/plugins/panel/singlestat/module.ts

@@ -2,7 +2,7 @@ import _ from 'lodash';
 import $ from 'jquery';
 import 'vendor/flot/jquery.flot';
 import 'vendor/flot/jquery.flot.gauge';
-import 'app/features/panellinks/linkSrv';
+import 'app/features/panellinks/link_srv';
 
 import kbn from 'app/core/utils/kbn';
 import config from 'app/core/config';