Remove generated directories with 100s of files.

client/html/generated/html/frog/XMLHttpRequestUpload.dart

Index: client/html/generated/html/frog/XMLHttpRequestUpload.dart
diff --git a/client/html/generated/html/frog/XMLHttpRequestUpload.dart b/client/html/generated/html/frog/XMLHttpRequestUpload.dart
deleted file mode 100644
index 4704c4e647d2014918bf54c114a73c689b300aa8..0000000000000000000000000000000000000000
--- a/client/html/generated/html/frog/XMLHttpRequestUpload.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-
-class _XMLHttpRequestUploadImpl extends _EventTargetImpl implements XMLHttpRequestUpload native "*XMLHttpRequestUpload" {
-
-  _XMLHttpRequestUploadEventsImpl get on() =>
-    new _XMLHttpRequestUploadEventsImpl(this);
-
-  void _addEventListener(String type, EventListener listener, [bool useCapture = null]) native "this.addEventListener(type, listener, useCapture);";
-
-  bool _dispatchEvent(_EventImpl evt) native "return this.dispatchEvent(evt);";
-
-  void _removeEventListener(String type, EventListener listener, [bool useCapture = null]) native "this.removeEventListener(type, listener, useCapture);";
-}
-
-class _XMLHttpRequestUploadEventsImpl extends _EventsImpl implements XMLHttpRequestUploadEvents {
-  _XMLHttpRequestUploadEventsImpl(_ptr) : super(_ptr);
-
-  EventListenerList get abort() => _get('abort');
-
-  EventListenerList get error() => _get('error');
-
-  EventListenerList get load() => _get('load');
-
-  EventListenerList get loadEnd() => _get('loadend');
-
-  EventListenerList get loadStart() => _get('loadstart');
-
-  EventListenerList get progress() => _get('progress');
-}