Remove generated directories with 100s of files.

client/html/generated/html/dartium/AbstractWorker.dart

Index: client/html/generated/html/dartium/AbstractWorker.dart
diff --git a/client/html/generated/html/dartium/AbstractWorker.dart b/client/html/generated/html/dartium/AbstractWorker.dart
deleted file mode 100644
index d263eb69e7c0d9ac94afe6e0185dadf54e4c490a..0000000000000000000000000000000000000000
--- a/client/html/generated/html/dartium/AbstractWorker.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-
-class _AbstractWorkerImpl extends _EventTargetImpl implements AbstractWorker {
-  _AbstractWorkerImpl._wrap(ptr) : super._wrap(ptr);
-
-  _AbstractWorkerEventsImpl get on() {
-    if (_on == null) _on = new _AbstractWorkerEventsImpl(this);
-    return _on;
-  }
-
-  void _addEventListener(String type, EventListener listener, [bool useCapture = null]) {
-    if (useCapture === null) {
-      _ptr.addEventListener(_unwrap(type), _unwrap(listener));
-      return;
-    } else {
-      _ptr.addEventListener(_unwrap(type), _unwrap(listener), _unwrap(useCapture));
-      return;
-    }
-  }
-
-  bool _dispatchEvent(Event evt) {
-    return _wrap(_ptr.dispatchEvent(_unwrap(evt)));
-  }
-
-  void _removeEventListener(String type, EventListener listener, [bool useCapture = null]) {
-    if (useCapture === null) {
-      _ptr.removeEventListener(_unwrap(type), _unwrap(listener));
-      return;
-    } else {
-      _ptr.removeEventListener(_unwrap(type), _unwrap(listener), _unwrap(useCapture));
-      return;
-    }
-  }
-}
-
-class _AbstractWorkerEventsImpl extends _EventsImpl implements AbstractWorkerEvents {
-  _AbstractWorkerEventsImpl(_ptr) : super(_ptr);
-
-  EventListenerList get error() => _get('error');
-}