Delete a bunch of packages that are now on GitHub.

pkg/shelf_web_socket/README.md

Index: pkg/shelf_web_socket/README.md
diff --git a/pkg/shelf_web_socket/README.md b/pkg/shelf_web_socket/README.md
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index 9091de0f7d352eb99f3f720fc335a94cc24854c6..0000000000000000000000000000000000000000
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-## Web Socket Handler for Shelf
-
-`shelf_web_socket` is a [Shelf][] handler for establishing [WebSocket][]
-connections. It exposes a single function, [webSocketHandler][], which calls an
-`onConnection` callback with a [CompatibleWebSocket][] object for every
-connection that's established.
-
-[Shelf]: pub.dartlang.org/packages/shelf
-
-[WebSocket]: https://tools.ietf.org/html/rfc6455
-
-[webSocketHandler]: https://api.dartlang.org/apidocs/channels/be/dartdoc-viewer/shelf_web_socket/shelf_web_socket.webSocketHandler
-
-[CompatibleWebSocket]: https://api.dartlang.org/apidocs/channels/be/dartdoc-viewer/http_parser/http_parser.CompatibleWebSocket
-
-```dart
-import 'package:shelf/shelf_io.dart' as shelf_io;
-import 'package:shelf_web_socket/shelf_web_socket.dart';
-
-void main() {
-  var handler = webSocketHandler((webSocket) {
-    webSocket.listen((message) {
-      webSocket.add("echo $message");
-    });
-  });
-
-  shelf_io.serve(handler, 'localhost', 8080).then((server) {
-    print('Serving at ws://${server.address.host}:${server.port}');
-  });
-}
-```