OZG-4948 Fix postfach-form test

alfa-client/libs/admin-settings/src/lib/postfach/postfach-container/postfach-form/postfach-form.component.spec.ts

@@ -8,10 +8,8 @@ import {
   getElementFromFixture,
 } from '@alfa-client/test-utils';
 import { PostfachFormService } from './postfach.formservice';
-import { MockComponent, MockService } from 'ng-mocks';
+import { MockComponent } from 'ng-mocks';
 import { TextFieldComponent } from '../../../shared/text-field/text-field.component';
-import { PostfachServiceToken } from '../../../admin-settings-provider';
-import { PostfachService } from '@alfa-client/postfach-shared';
 
 describe('PostfachFormComponent', () => {
   let component: PostfachFormComponent;
@@ -24,12 +22,6 @@ describe('PostfachFormComponent', () => {
     await TestBed.configureTestingModule({
       declarations: [PostfachFormComponent, MockComponent(TextFieldComponent)],
       imports: [ReactiveFormsModule, FormsModule],
-      providers: [
-        {
-          provide: PostfachServiceToken,
-          useValue: MockService(PostfachService),
-        },
-      ],
     }).compileComponents();
   });