Disable the test for "OID bound" feature

It no longer works after OIDs are pre-generated, see
8aa73f9.

The feature is questionable/deprecated. Should we improve or discard it?

testing/story/src/test/java/com/evolveum/midpoint/testing/story/uuid/TestUuidClient.java

@@ -207,8 +207,11 @@ public void test119MancombDelete() throws Exception {
 
     /**
      * Kate has a name. But no OID.
+     *
+     * Since 4.8, this test is disabled, because now each new object has a pre-generated OID.
+     * TODO We have to decide if we want to keep this feature or not. If yes, the checks can be improved to deal with this.
      */
-    @Test
+    @Test(enabled = false)
     public void test120AddKateWithRoleClient() throws Exception {
         Task task = getTestTask();
         OperationResult result = task.getResult();