fix tests

src/test/javascript/spec/component/exam-exercise-row-buttons/exam-exercise-row-buttons.component.spec.ts

@@ -1,6 +1,5 @@
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { ArtemisTestModule } from '../../test.module';
-import { TranslatePipeMock } from '../../helpers/mocks/service/mock-translate.service';
 import { ExamExerciseRowButtonsComponent } from 'app/exercises/shared/exam-exercise-row-buttons/exam-exercise-row-buttons.component';
 import { Course } from 'app/entities/course.model';
 import { TextExercise } from 'app/entities/text/text-exercise.model';
@@ -18,9 +17,7 @@ import { of, throwError } from 'rxjs';
 import { HttpErrorResponse } from '@angular/common/http';
 import { ProgrammingExerciseService } from 'app/exercises/programming/manage/services/programming-exercise.service';
 import { ProgrammingExercise } from 'app/entities/programming/programming-exercise.model';
-import { MockDirective, MockProvider } from 'ng-mocks';
-import { DeleteButtonDirective } from 'app/shared/delete-dialog/delete-button.directive';
-import { MockRouterLinkDirective } from '../../helpers/mocks/directive/mock-router-link.directive';
+import { MockProvider } from 'ng-mocks';
 
 describe('ExamExerciseRowButtonsComponent', () => {
     const course = { id: 3 } as Course;
@@ -55,7 +52,6 @@ describe('ExamExerciseRowButtonsComponent', () => {
     beforeEach(() => {
         TestBed.configureTestingModule({
             imports: [ArtemisTestModule],
-            declarations: [ExamExerciseRowButtonsComponent, TranslatePipeMock, MockDirective(DeleteButtonDirective), MockRouterLinkDirective],
             providers: [
                 MockProvider(TextExerciseService),
                 MockProvider(FileUploadExerciseService),