Eliminate faulty override test

tests/language/bad_override_test.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 class Fisk {
-  get fisk => null;
-  static /// 01: compile-time error
-  set fisk(x) {}
-  static /// 02: compile-time error
-  get hest => null;
-  set hest(x) {}
   foo() {}
   var field;
   method() {}
   nullary() {}
 }
 
 class Hest extends Fisk {
-  static foo() {} /// 03: compile-time error
-  field() {} /// 04: compile-time error
-  var method; /// 05: compile-time error
-  nullary(x) {} /// 06: compile-time error
+  static foo() {}   /// 03: compile-time error
+  field() {}        /// 04: compile-time error
+  var method;       /// 05: compile-time error
+  nullary(x) {}     /// 06: compile-time error
 }
 
 main() {
   new Fisk();
   new Hest();
 }