OZG-6867 remove unnecessary setUp

src/test/java/de/ozgcloud/admin/organisationseinheit/SyncServiceTest.java

@@ -136,10 +136,6 @@ class SyncServiceTest {
 		private final SyncResult syncedSyncResult = SyncResult.OK;
 		private final String syncedZufiId = UUID.randomUUID().toString();
 
-		@BeforeEach
-		void setUp() {
-		}
-
 		@Nested
 		class ParentGroup {