Remove generated directories with 100s of files.

client/dom/generated/src/interface/History.dart

Index: client/dom/generated/src/interface/History.dart
diff --git a/client/dom/generated/src/interface/History.dart b/client/dom/generated/src/interface/History.dart
deleted file mode 100644
index 7294900aa7c1957b97df7138152c380b8838579d..0000000000000000000000000000000000000000
--- a/client/dom/generated/src/interface/History.dart
+++ /dev/null
@@ -1,22 +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 History {
-
-  final int length;
-
-  final Dynamic state;
-
-  void back();
-
-  void forward();
-
-  void go(int distance);
-
-  void pushState(Object data, String title, [String url]);
-
-  void replaceState(Object data, String title, [String url]);
-}