Remove generated directories with 100s of files.

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

Index: client/dom/generated/src/interface/ValidityState.dart
diff --git a/client/dom/generated/src/interface/ValidityState.dart b/client/dom/generated/src/interface/ValidityState.dart
deleted file mode 100644
index ae69d8adc5475c147cd3cfa761159fe460770761..0000000000000000000000000000000000000000
--- a/client/dom/generated/src/interface/ValidityState.dart
+++ /dev/null
@@ -1,26 +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 ValidityState {
-
-  final bool customError;
-
-  final bool patternMismatch;
-
-  final bool rangeOverflow;
-
-  final bool rangeUnderflow;
-
-  final bool stepMismatch;
-
-  final bool tooLong;
-
-  final bool typeMismatch;
-
-  final bool valid;
-
-  final bool valueMissing;
-}