Remove generated directories with 100s of files.

client/html/generated/html/interface/DOMSelection.dart

Index: client/html/generated/html/interface/DOMSelection.dart
diff --git a/client/html/generated/html/interface/DOMSelection.dart b/client/html/generated/html/interface/DOMSelection.dart
deleted file mode 100644
index 50a86d74457e2901c760ab4554283995756c24ea..0000000000000000000000000000000000000000
--- a/client/html/generated/html/interface/DOMSelection.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 DOMSelection {
-
-  final Node anchorNode;
-
-  final int anchorOffset;
-
-  final Node baseNode;
-
-  final int baseOffset;
-
-  final Node extentNode;
-
-  final int extentOffset;
-
-  final Node focusNode;
-
-  final int focusOffset;
-
-  final bool isCollapsed;
-
-  final int rangeCount;
-
-  final String type;
-
-  void addRange(Range range);
-
-  void collapse(Node node, int index);
-
-  void collapseToEnd();
-
-  void collapseToStart();
-
-  bool containsNode(Node node, bool allowPartial);
-
-  void deleteFromDocument();
-
-  void empty();
-
-  void extend(Node node, int offset);
-
-  Range getRangeAt(int index);
-
-  void modify(String alter, String direction, String granularity);
-
-  void removeAllRanges();
-
-  void selectAllChildren(Node node);
-
-  void setBaseAndExtent(Node baseNode, int baseOffset, Node extentNode, int extentOffset);
-
-  void setPosition(Node node, int offset);
-
-  String toString();
-}