Remove frog from the repository.

frog/tests/await/initializer_negative_test.dart

Index: frog/tests/await/initializer_negative_test.dart
diff --git a/frog/tests/await/initializer_negative_test.dart b/frog/tests/await/initializer_negative_test.dart
deleted file mode 100644
index f068b67464edc0a6688bb2edd980bee788a25ec2..0000000000000000000000000000000000000000
--- a/frog/tests/await/initializer_negative_test.dart
+++ /dev/null
@@ -1,20 +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.
-
-// The next line is used to tell test.dart that this test is run by invoking
-// awaitc.dart and passing this file as an argument (e.g. frog
-// frog/await/awaitc.dart test.dart):
-// VMOptions=frog/await/awaitc.dart
-
-// Illegal to use await in initializers.
-#import("await_test_helper.dart");
-
-final Future f = null;
-
-class A {
-  int x;
-  A() : x = await f;
-}
-
-main() => Expect.equals(true, (new A() != null));