Revert "Migrating a block of dart 2:"

tests/language_2/class_syntax_test.dart

Index: tests/language_2/class_syntax_test.dart
diff --git a/tests/language_2/class_syntax_test.dart b/tests/language_2/class_syntax_test.dart
deleted file mode 100644
index ea431389572add2e3b1ffa2efbb9303f39ae9f16..0000000000000000000000000000000000000000
--- a/tests/language_2/class_syntax_test.dart
+++ /dev/null
@@ -1,12 +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.
-
-main() {
-  new ClassSyntaxTest();
-}
-
-class ClassSyntaxTest {
-  /* //# 01: compile-time error
-}
-*/ //# 01: continued