Remove more libraries directives from server

pkg/analysis_server/lib/src/channel/byte_stream_channel.dart

Index: pkg/analysis_server/lib/src/channel/byte_stream_channel.dart
diff --git a/pkg/analysis_server/lib/src/channel/byte_stream_channel.dart b/pkg/analysis_server/lib/src/channel/byte_stream_channel.dart
index a63f12a4fc897767c1589594fa0030966b8ba914..b7747cc2ae6b7a2199c739c2e1363994d91df0cb 100644
--- a/pkg/analysis_server/lib/src/channel/byte_stream_channel.dart
+++ b/pkg/analysis_server/lib/src/channel/byte_stream_channel.dart
@@ -2,8 +2,6 @@
 // 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.byte_stream;
-
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';