OZG-7303: Remove wrong Unit-Test.

ozgcloud-keycloak-operator/src/test/java/de/ozgcloud/operator/keycloak/realm/KeycloakRealmServiceTest.java

@@ -135,13 +135,6 @@ class KeycloakRealmServiceTest {
 			verify(service).addUserProfileAttributes(realmRepresentation);
 		}
 
-		@Test
-		void updateRealmShouldSetLoginTheme(){
-			updateRealm();
-
-			assertThat(realmRepresentation.getLoginTheme()).isEqualTo("ozg-sh");
-		}
-
 		private void updateRealm() {
 			service.updateRealm(realmRepresentation, REALM);
 		}