Revert "Fixing up Navigator.getUserMedia."

tests/html/media_stream_test.dart

-// 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.
-
-library media_stream_test;
-import '../../pkg/unittest/lib/unittest.dart';
-import '../../pkg/unittest/lib/html_individual_config.dart';
-import 'dart:html';
-
-main() {
-  useHtmlIndividualConfiguration();
-
-  group('supported', () {
-    test('supported', () {
-      expect(MediaStream.supported, true);
-    });
-  });
-
-  // No additional tests right now since this API prompts for user input to
-  // continue.
-}