Deprecate import inject from @ember/service (#2716)

* Deprecate usage of import inject

ui/admin/app/controllers/scopes/scope/authenticate/method/index.js

@@ -4,7 +4,7 @@
  */
 
 import Controller from '@ember/controller';
-import { inject as service } from '@ember/service';
+import { service } from '@ember/service';
 import { getOwner } from '@ember/application';
 import { action } from '@ember/object';
 import { loading } from 'ember-loading';

ui/admin/app/controllers/scopes/scope/authenticate/method/oidc.js

@@ -4,7 +4,7 @@
  */
 
 import Controller, { inject as controller } from '@ember/controller';
-import { inject as service } from '@ember/service';
+import { service } from '@ember/service';
 import { action } from '@ember/object';
 
 export default class ScopesScopeAuthenticateMethodOidcController extends Controller {