Remove generated directories with 100s of files.

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

Index: client/dom/generated/src/frog/HTMLDocument.dart
diff --git a/client/dom/generated/src/frog/HTMLDocument.dart b/client/dom/generated/src/frog/HTMLDocument.dart
deleted file mode 100644
index 2c769cebaa042e79abde7a19a0b1a5e65a0dcabc..0000000000000000000000000000000000000000
--- a/client/dom/generated/src/frog/HTMLDocument.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-
-class _HTMLDocumentJs extends _DocumentJs implements HTMLDocument native "*HTMLDocument" {
-
-  final _ElementJs activeElement;
-
-  String alinkColor;
-
-  _HTMLAllCollectionJs all;
-
-  String bgColor;
-
-  // Use implementation from Document.
-  // final String compatMode;
-
-  String designMode;
-
-  String dir;
-
-  final _HTMLCollectionJs embeds;
-
-  String fgColor;
-
-  String linkColor;
-
-  final _HTMLCollectionJs plugins;
-
-  final _HTMLCollectionJs scripts;
-
-  String vlinkColor;
-
-  void captureEvents() native;
-
-  void clear() native;
-
-  void close() native;
-
-  bool hasFocus() native;
-
-  void open() native;
-
-  void releaseEvents() native;
-
-  void write(String text) native;
-
-  void writeln(String text) native;
-}