Remove generated directories with 100s of files.

client/dom/generated/src/frog/DOMSelection.dart

Index: client/dom/generated/src/frog/DOMSelection.dart
diff --git a/client/dom/generated/src/frog/DOMSelection.dart b/client/dom/generated/src/frog/DOMSelection.dart
deleted file mode 100644
index b90e0baf237230c7f520fe56403bc05cffbe9aa5..0000000000000000000000000000000000000000
--- a/client/dom/generated/src/frog/DOMSelection.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-
-class _DOMSelectionJs extends _DOMTypeJs implements DOMSelection native "*DOMSelection" {
-
-  final _NodeJs anchorNode;
-
-  final int anchorOffset;
-
-  final _NodeJs baseNode;
-
-  final int baseOffset;
-
-  final _NodeJs extentNode;
-
-  final int extentOffset;
-
-  final _NodeJs focusNode;
-
-  final int focusOffset;
-
-  final bool isCollapsed;
-
-  final int rangeCount;
-
-  final String type;
-
-  void addRange(_RangeJs range) native;
-
-  void collapse(_NodeJs node, int index) native;
-
-  void collapseToEnd() native;
-
-  void collapseToStart() native;
-
-  bool containsNode(_NodeJs node, bool allowPartial) native;
-
-  void deleteFromDocument() native;
-
-  void empty() native;
-
-  void extend(_NodeJs node, int offset) native;
-
-  _RangeJs getRangeAt(int index) native;
-
-  void modify(String alter, String direction, String granularity) native;
-
-  void removeAllRanges() native;
-
-  void selectAllChildren(_NodeJs node) native;
-
-  void setBaseAndExtent(_NodeJs baseNode, int baseOffset, _NodeJs extentNode, int extentOffset) native;
-
-  void setPosition(_NodeJs node, int offset) native;
-
-  String toString() native;
-}