Remove generated directories with 100s of files.

client/html/generated/html/frog/FrameElement.dart

Index: client/html/generated/html/frog/FrameElement.dart
diff --git a/client/html/generated/html/frog/FrameElement.dart b/client/html/generated/html/frog/FrameElement.dart
deleted file mode 100644
index bd8f0f24f7d18b77462d3da309c6fd94f8e78ed0..0000000000000000000000000000000000000000
--- a/client/html/generated/html/frog/FrameElement.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-
-class _FrameElementImpl extends _ElementImpl implements FrameElement native "*HTMLFrameElement" {
-
-  _DocumentImpl get contentDocument() => _FixHtmlDocumentReference(_contentDocument);
-
-  _EventTargetImpl get _contentDocument() native "return this.contentDocument;";
-
-  final _WindowImpl contentWindow;
-
-  String frameBorder;
-
-  final int height;
-
-  String location;
-
-  String longDesc;
-
-  String marginHeight;
-
-  String marginWidth;
-
-  String name;
-
-  bool noResize;
-
-  String scrolling;
-
-  String src;
-
-  final int width;
-
-  _SVGDocumentImpl getSVGDocument() native;
-}