Remove generated directories with 100s of files.

client/html/generated/html/interface/SVGDocument.dart

Index: client/html/generated/html/interface/SVGDocument.dart
diff --git a/client/html/generated/html/interface/SVGDocument.dart b/client/html/generated/html/interface/SVGDocument.dart
deleted file mode 100644
index 5d6697914153f4f1e5335f6c46e1e0c508e08afc..0000000000000000000000000000000000000000
--- a/client/html/generated/html/interface/SVGDocument.dart
+++ /dev/null
@@ -1,12 +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 SVGDocument extends Document {
-
-  final SVGSVGElement rootElement;
-
-  Event _createEvent(String eventType);
-}