Remove this test. It is covered by tests/language/factory_return_type_checked_test.dart.

tests/compiler/dart2js_extra/factory_test.dart

Index: tests/compiler/dart2js_extra/factory_test.dart
===================================================================
--- tests/compiler/dart2js_extra/factory_test.dart	(revision 22988)
+++ tests/compiler/dart2js_extra/factory_test.dart	(working copy)
@@ -1,15 +0,0 @@
-// Copyright (c) 2011, 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.
-
-import "package:expect/expect.dart";
-
-class A {
-  factory A() {
-    return 1;
-  }
-}
-
-main() {
-  Expect.equals(1, new A());
-}