Remove unused variant of native JS class definition.

tests/compiler/dart2js_native/native_literal_class_frog_test.dart

Index: tests/compiler/dart2js_native/native_literal_class_frog_test.dart
diff --git a/tests/compiler/dart2js_native/native_literal_class_frog_test.dart b/tests/compiler/dart2js_native/native_literal_class_frog_test.dart
deleted file mode 100644
index fc6d8a0b79412f62ee7aacbfcb879545ad61dd7b..0000000000000000000000000000000000000000
--- a/tests/compiler/dart2js_native/native_literal_class_frog_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// 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 A native "= {log: function() { return 42 } }" {
-  void log() native;
-}
-
-getA() native """
-  return A;
-""";
-
-bar() {
-  new A();
-}
-
-main() {
-  var a = getA();
-  // Make a call to bar to make sure A gets generated.
-  if (a is int) bar();
-  Expect.equals(42, a.log());
-}