Revert "Enable type inference when using mirrors."

tests/compiler/dart2js_extra/mirror_type_inference_function_test.dart

Index: tests/compiler/dart2js_extra/mirror_type_inference_function_test.dart
diff --git a/tests/compiler/dart2js_extra/mirror_type_inference_function_test.dart b/tests/compiler/dart2js_extra/mirror_type_inference_function_test.dart
deleted file mode 100644
index a6ed031f9122688109dfc38ad102a0aeb9ba3d93..0000000000000000000000000000000000000000
--- a/tests/compiler/dart2js_extra/mirror_type_inference_function_test.dart
+++ /dev/null
@@ -1,20 +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.
-
-// Test that type inference sees the call to `fisk` from the mirror system
-// and not infers the argument to be an integer.
-library test;
-
-@MirrorsUsed(targets: 'fisk', override: '*')
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-bool fisk(a) => a is int;
-
-main() {
-  Expect.isTrue(fisk(1));
-  var lm = currentMirrorSystem().findLibrary(const Symbol('test')).single;
-  Expect.isFalse(lm.invoke(const Symbol('fisk'), ['hest']).reflectee);
-}