Revert "Support runtime check of function types."

tests/language/function_subtype_cast2_test.dart

Index: tests/language/function_subtype_cast2_test.dart
diff --git a/tests/language/function_subtype_cast2_test.dart b/tests/language/function_subtype_cast2_test.dart
deleted file mode 100644
index 3f1aaa6545d2dd025253d73833564a18e0af7419..0000000000000000000000000000000000000000
--- a/tests/language/function_subtype_cast2_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, 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.
-// Dart test program for constructors and initializers.
-
-// Check function subtyping casts.
-
-import 'package:expect/expect.dart';
-
-typedef void Foo<T>(T t);
-typedef void Bar(int i);
-
-class Class<T> {
-  test(bool expectedResult, var o, String typeName) {
-    if (expectedResult) {
-      Expect.isNotNull(o as Foo<T>, "bar as Foo<$typeName>");
-    } else {
-      Expect.throws(() => o as Foo<T>, (e) => true, "bar as Foo<$typeName>");
-    }
-    Expect.isNotNull(o as Bar, "bar as Bar");
-  }
-}
-
-void bar(int i) {}
-
-void main() {
-  new Class().test(true, bar, "dynamic");
-  new Class<int>().test(true, bar, "int");
-  new Class<bool>().test(false, bar, "bool");
-}