Remove frog from the repository.

frog/tests/tests.dart

Index: frog/tests/tests.dart
diff --git a/frog/tests/tests.dart b/frog/tests/tests.dart
deleted file mode 100644
index a37435add09f8291cb2516103d6cb21164c0e047..0000000000000000000000000000000000000000
--- a/frog/tests/tests.dart
+++ /dev/null
@@ -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('../lang.dart');
-
-#source('parser_test.dart');
-#source('tokenizer_test.dart');
-
-// TODO(jimhug): Replace this with proper test harness integration.
-void main() {
-  TokenizerTest.main();
-  ParserTest.main();
-  print('all tests finished');
-}