Remove generated directories with 100s of files.

client/html/generated/html/interface/NodeSelector.dart

Index: client/html/generated/html/interface/NodeSelector.dart
diff --git a/client/html/generated/html/interface/NodeSelector.dart b/client/html/generated/html/interface/NodeSelector.dart
deleted file mode 100644
index 456a3d95d8fb917a34802409145b2c40c4ae573f..0000000000000000000000000000000000000000
--- a/client/html/generated/html/interface/NodeSelector.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2011, 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 NodeSelector {
-
-  // TODO(nweiz): add this back once DocumentFragment is ported.
-  // ElementList queryAll(String selectors);
-
-
-  Element query(String selectors);
-
-  NodeList _querySelectorAll(String selectors);
-
-}