Remove generated directories with 100s of files.

client/html/generated/html/interface/Worker.dart

Index: client/html/generated/html/interface/Worker.dart
diff --git a/client/html/generated/html/interface/Worker.dart b/client/html/generated/html/interface/Worker.dart
deleted file mode 100644
index 5bd9e7ed3eeeaed6b9b0edeb19671ef6477307c0..0000000000000000000000000000000000000000
--- a/client/html/generated/html/interface/Worker.dart
+++ /dev/null
@@ -1,23 +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 Worker extends AbstractWorker default _WorkerFactoryProvider {
-
-  Worker(String scriptUrl);
-
-  WorkerEvents get on();
-
-  void postMessage(Dynamic message, [List messagePorts]);
-
-  void terminate();
-
-  void webkitPostMessage(Dynamic message, [List messagePorts]);
-}
-
-interface WorkerEvents extends AbstractWorkerEvents {
-
-  EventListenerList get message();
-}