Remove generated directories with 100s of files.

client/html/generated/html/interface/TextAreaElement.dart

Index: client/html/generated/html/interface/TextAreaElement.dart
diff --git a/client/html/generated/html/interface/TextAreaElement.dart b/client/html/generated/html/interface/TextAreaElement.dart
deleted file mode 100644
index e3c9c27723e7948ee10860b715caa1d560c3ab72..0000000000000000000000000000000000000000
--- a/client/html/generated/html/interface/TextAreaElement.dart
+++ /dev/null
@@ -1,60 +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 TextAreaElement extends Element {
-
-  bool autofocus;
-
-  int cols;
-
-  String defaultValue;
-
-  bool disabled;
-
-  final FormElement form;
-
-  final NodeList labels;
-
-  int maxLength;
-
-  String name;
-
-  String placeholder;
-
-  bool readOnly;
-
-  bool required;
-
-  int rows;
-
-  String selectionDirection;
-
-  int selectionEnd;
-
-  int selectionStart;
-
-  final int textLength;
-
-  final String type;
-
-  final String validationMessage;
-
-  final ValidityState validity;
-
-  String value;
-
-  final bool willValidate;
-
-  String wrap;
-
-  bool checkValidity();
-
-  void select();
-
-  void setCustomValidity(String error);
-
-  void setSelectionRange(int start, int end, [String direction]);
-}