OZG-6897 clean up test

user-manager-server/src/test/java/de/ozgcloud/user/UserRepositoryITCase.java

@@ -591,7 +591,7 @@ class UserRepositoryITCase {
 				.clearOrganisationsEinheitIds()
 				.organisationsEinheitId(ORGANISATIONSEINHEIT_ID_2)
 				.build();
-		private final User user4 = UserTestFactory.createBuilder()
+		private final User deletedUser = UserTestFactory.createBuilder()
 				.id(null)
 				.clearOrganisationsEinheitIds()
 				.organisationsEinheitId(ORGANISATIONSEINHEIT_ID_1)
@@ -601,10 +601,7 @@ class UserRepositoryITCase {
 		@BeforeEach
 		void init() {
 			repository.deleteAll();
-			repository.persist(user1);
-			repository.persist(user2);
-			repository.persist(user3);
-			repository.persist(user4);
+			repository.persist(user1, user2, user3, deletedUser);
 		}
 
 		@Test