Revert "Support runtime check of function types."

tests/language/function_subtype_bound_closure7_test.dart

Index: tests/language/function_subtype_bound_closure7_test.dart
diff --git a/tests/language/function_subtype_bound_closure7_test.dart b/tests/language/function_subtype_bound_closure7_test.dart
deleted file mode 100644
index 5f24aa9d21c88d25ec6b555821edd7b2c7cf67fb..0000000000000000000000000000000000000000
--- a/tests/language/function_subtype_bound_closure7_test.dart
+++ /dev/null
@@ -1,33 +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 for bound closures.
-
-import 'package:expect/expect.dart';
-
-typedef void Foo<T>(T t);
-
-class Class<T> {
-  foo(Foo<T> o) => o is Foo<T>;
-}
-
-void bar(int i) {}
-
-void main() {
-  bool inCheckedMode = false;
-  try {
-    String a = 42;
-  } catch (e) {
-    inCheckedMode = true;
-  }
-
-  var f = new Class<int>().foo;
-  Expect.isTrue(f(bar));
-  if (inCheckedMode) {
-    Expect.throws(() => f(f), (e) => true);
-  } else {
-    Expect.isFalse(f(f));
-  }
-}