test: 💍 add missing controller unit tests in admin-ui (#2553)

* test: 💍 add missing controller unit tests in admin-ui

✅ Closes: https://hashicorp.atlassian.net/browse/ICU-14740

ui/admin/app/controllers/scopes/scope/auth-methods/new.js

@@ -8,8 +8,6 @@ import Controller, { inject as controller } from '@ember/controller';
 export default class ScopesScopeAuthMethodsNewController extends Controller {
   @controller('scopes/scope/auth-methods/index') authMethods;
 
-  // =services
-
   // =attributes
 
   queryParams = ['type'];