Remove generated directories with 100s of files.

client/html/generated/html/interface/EventSource.dart

Index: client/html/generated/html/interface/EventSource.dart
diff --git a/client/html/generated/html/interface/EventSource.dart b/client/html/generated/html/interface/EventSource.dart
deleted file mode 100644
index fc52a5b238f6d735d5138d22d91bc622c56dc510..0000000000000000000000000000000000000000
--- a/client/html/generated/html/interface/EventSource.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// 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.
-
-// WARNING: Do not edit - generated code.
-
-interface EventSource extends EventTarget default _EventSourceFactoryProvider {
-
-  EventSource(String scriptUrl);
-
-  EventSourceEvents get on();
-
-  static final int CLOSED = 2;
-
-  static final int CONNECTING = 0;
-
-  static final int OPEN = 1;
-
-  final String URL;
-
-  final int readyState;
-
-  final String url;
-
-  void _addEventListener(String type, EventListener listener, [bool useCapture]);
-
-  void close();
-
-  bool _dispatchEvent(Event evt);
-
-  void _removeEventListener(String type, EventListener listener, [bool useCapture]);
-}
-
-interface EventSourceEvents extends Events {
-
-  EventListenerList get error();
-
-  EventListenerList get message();
-
-  EventListenerList get open();
-}