Reverting 14496

pkg/http/test/streamed_request_test.dart

-// 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.
-
-library streamed_request_test;
-
-import 'dart:io';
-
-import '../../unittest/lib/unittest.dart';
-import '../lib/http.dart' as http;
-import 'utils.dart';
-
-void main() {
-  test('#finalize freezes contentLength', () {
-    var request = new http.StreamedRequest('POST', dummyUrl);
-    request.finalize();
-
-    expect(request.contentLength, equals(-1));
-    expect(() => request.contentLength = 10, throwsStateError);
-  });
-}