SQL: eliminate disabled tests

x-pack/plugin/sql/src/test/java/org/elasticsearch/xpack/sql/planner/VerifierErrorMessagesTests.java

@@ -49,18 +49,4 @@ public class VerifierErrorMessagesTests extends ESTestCase {
         assertEquals("1:32: Currently, only a single expression can be used with GROUP BY; please select one of [bool, keyword]",
                 verify("SELECT bool FROM test GROUP BY bool, keyword"));
     }
-
-    //
-    // TODO potential improvements
-    //
-    // regarding resolution
-    //    public void testGroupByOrderByKeyAlias() {
-    //        assertEquals("1:8: Cannot use field [unsupported] type [ip_range] as is unsupported",
-    //                verify("SELECT int i FROM test GROUP BY int ORDER BY i"));
-    //    }
-    //
-    //    public void testGroupByAlias() {
-    //        assertEquals("1:8: Cannot use field [unsupported] type [ip_range] as is unsupported",
-    //                verify("SELECT int i FROM test GROUP BY i ORDER BY int"));
-    //    }
 }