[EA3-211] chore: 필요없는 의존성 제거

Author: pia01190

src/test/java/grep/neogulcoder/domain/study/service/StudyManagementServiceTest.java

@@ -43,9 +43,6 @@ class StudyManagementServiceTest extends IntegrationTestSupport {
     @Autowired
     private StudyMemberRepository studyMemberRepository;
 
-    @Autowired
-    private StudyManagementService studyManagementService;
-
     @Autowired
     private StudyManagementServiceFacade studyManagementServiceFacade;