remove duplicate packages in fuzz test

pkg/analysis_server/bin/fuzz/channel.dart

Index: pkg/analysis_server/bin/fuzz/channel.dart
diff --git a/pkg/analysis_server/bin/fuzz/channel.dart b/pkg/analysis_server/bin/fuzz/channel.dart
deleted file mode 100644
index 1130ace4bbe990b9778091e4bd09badc69e1ffe8..0000000000000000000000000000000000000000
--- a/pkg/analysis_server/bin/fuzz/channel.dart
+++ /dev/null
@@ -1,151 +0,0 @@
-// Copyright (c) 2014, 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 channel;
-
-import 'dart:async';
-import 'dart:convert';
-
-import 'protocol.dart';
-
-/**
- * The abstract class [ClientCommunicationChannel] defines the behavior of
- * objects that allow a client to send [Request]s to an [AnalysisServer] and to
- * receive both [Response]s and [Notification]s.
- */
-abstract class ClientCommunicationChannel {
-  /**
-   * The stream of notifications from the server.
-   */
-  Stream<Notification> notificationStream;
-
-  /**
-   * The stream of responses from the server.
-   */
-  Stream<Response> responseStream;
-
-  /**
-   * Send the given [request] to the server
-   * and return a future with the associated [Response].
-   */
-  Future<Response> sendRequest(Request request);
-
-  /**
-   * Close the channel to the server. Once called, all future communication
-   * with the server via [sendRequest] will silently be ignored.
-   */
-  Future close();
-}
-
-/**
- * The abstract class [ServerCommunicationChannel] defines the behavior of
- * objects that allow an [AnalysisServer] to receive [Request]s and to return
- * both [Response]s and [Notification]s.
- */
-abstract class ServerCommunicationChannel {
-  /**
-   * Listen to the channel for requests. If a request is received, invoke the
-   * [onRequest] function. If an error is encountered while trying to read from
-   * the socket, invoke the [onError] function. If the socket is closed by the
-   * client, invoke the [onDone] function.
-   * Only one listener is allowed per channel.
-   */
-  void listen(void onRequest(Request request), {Function onError, void onDone()});
-
-  /**
-   * Send the given [notification] to the client.
-   */
-  void sendNotification(Notification notification);
-
-  /**
-   * Send the given [response] to the client.
-   */
-  void sendResponse(Response response);
-
-  /**
-   * Close the communication channel.
-   */
-  void close();
-}
-
-/**
- * Instances of the class [JsonStreamDecoder] convert JSON strings to JSON
- * maps.
- */
-class JsonStreamDecoder extends Converter<String, Map> {
-  @override
-  Map convert(String text) => JSON.decode(text);
-
-  @override
-  ChunkedConversionSink startChunkedConversion(Sink sink) =>
-      new ChannelChunkSink<String, Map>(this, sink);
-}
-
-/**
- * Instances of the class [ResponseConverter] convert JSON maps to [Response]s.
- */
-class ResponseConverter extends Converter<Map, Response> {
-  @override
-  Response convert(Map json) => new Response.fromJson(json);
-
-  @override
-  ChunkedConversionSink startChunkedConversion(Sink sink) =>
-      new ChannelChunkSink<Map, Response>(this, sink);
-}
-
-/**
- * Instances of the class [NotificationConverter] convert JSON maps to
- * [Notification]s.
- */
-class NotificationConverter extends Converter<Map, Notification> {
-  @override
-  Notification convert(Map json) => new Notification.fromJson(json);
-
-  @override
-  ChunkedConversionSink startChunkedConversion(Sink sink) =>
-      new ChannelChunkSink<Map, Notification>(this, sink);
-}
-
-/**
- * Instances of the class [ChannelChunkSink] uses a [Converter] to translate
- * chunks.
- */
-class ChannelChunkSink<S, T> extends ChunkedConversionSink<S> {
-  /**
-   * The converter used to translate chunks.
-   */
-  final Converter<S, T> converter;
-
-  /**
-   * The sink to which the converted chunks are added.
-   */
-  final Sink sink;
-
-  /**
-   * A flag indicating whether the sink has been closed.
-   */
-  bool closed = false;
-
-  /**
-   * Initialize a newly create sink to use the given [converter] to convert
-   * chunks before adding them to the given [sink].
-   */
-  ChannelChunkSink(this.converter, this.sink);
-
-  @override
-  void add(S chunk) {
-    if (!closed) {
-      T convertedChunk = converter.convert(chunk);
-      if (convertedChunk != null) {
-        sink.add(convertedChunk);
-      }
-    }
-  }
-
-  @override
-  void close() {
-    closed = true;
-    sink.close();
-  }
-}