Remove generated directories with 100s of files.

client/html/generated/html/dartium/MouseEvent.dart

Index: client/html/generated/html/dartium/MouseEvent.dart
diff --git a/client/html/generated/html/dartium/MouseEvent.dart b/client/html/generated/html/dartium/MouseEvent.dart
deleted file mode 100644
index f204c35fd5ec0b7bcbba2bc2b31e661dfd8b7e7c..0000000000000000000000000000000000000000
--- a/client/html/generated/html/dartium/MouseEvent.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-
-class _MouseEventImpl extends _UIEventImpl implements MouseEvent {
-  _MouseEventImpl._wrap(ptr) : super._wrap(ptr);
-
-  bool get altKey() => _wrap(_ptr.altKey);
-
-  int get button() => _wrap(_ptr.button);
-
-  int get clientX() => _wrap(_ptr.clientX);
-
-  int get clientY() => _wrap(_ptr.clientY);
-
-  bool get ctrlKey() => _wrap(_ptr.ctrlKey);
-
-  Clipboard get dataTransfer() => _wrap(_ptr.dataTransfer);
-
-  Node get fromElement() => _wrap(_ptr.fromElement);
-
-  bool get metaKey() => _wrap(_ptr.metaKey);
-
-  int get offsetX() => _wrap(_ptr.offsetX);
-
-  int get offsetY() => _wrap(_ptr.offsetY);
-
-  EventTarget get relatedTarget() => _FixHtmlDocumentReference(_wrap(_ptr.relatedTarget));
-
-  int get screenX() => _wrap(_ptr.screenX);
-
-  int get screenY() => _wrap(_ptr.screenY);
-
-  bool get shiftKey() => _wrap(_ptr.shiftKey);
-
-  Node get toElement() => _wrap(_ptr.toElement);
-
-  int get x() => _wrap(_ptr.x);
-
-  int get y() => _wrap(_ptr.y);
-
-  void _initMouseEvent(String type, bool canBubble, bool cancelable, Window view, int detail, int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, int button, EventTarget relatedTarget) {
-    _ptr.initMouseEvent(_unwrap(type), _unwrap(canBubble), _unwrap(cancelable), _unwrap(view), _unwrap(detail), _unwrap(screenX), _unwrap(screenY), _unwrap(clientX), _unwrap(clientY), _unwrap(ctrlKey), _unwrap(altKey), _unwrap(shiftKey), _unwrap(metaKey), _unwrap(button), _unwrap(relatedTarget));
-    return;
-  }
-}