Remove the http package from the repo.

pkg/http/lib/src/streamed_response.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_response;
-
-import 'dart:async';
-
-import 'byte_stream.dart';
-import 'base_response.dart';
-import 'base_request.dart';
-import 'utils.dart';
-
-/// An HTTP response where the response body is received asynchronously after
-/// the headers have been received.
-class StreamedResponse extends BaseResponse {
-  /// The stream from which the response body data can be read. This should
-  /// always be a single-subscription stream.
-  final ByteStream stream;
-
-  /// Creates a new streaming response. [stream] should be a single-subscription
-  /// stream.
-  StreamedResponse(
-      Stream<List<int>> stream,
-      int statusCode,
-      {int contentLength,
-       BaseRequest request,
-       Map<String, String> headers: const {},
-       bool isRedirect: false,
-       bool persistentConnection: true,
-       String reasonPhrase})
-    : super(
-        statusCode,
-        contentLength: contentLength,
-        request: request,
-        headers: headers,
-        isRedirect: isRedirect,
-        persistentConnection: persistentConnection,
-        reasonPhrase: reasonPhrase),
-      this.stream = toByteStream(stream);
-}