Removes deprecated events.state.State.worker_event (use .event)

celery/events/state.py

@@ -477,10 +477,6 @@ class State:
         with self._mutex:
             return self._event(event)
 
-    def worker_event(self, type_, fields):
-        """Deprecated, use :meth:`event`."""
-        return self._event(dict(fields, type='-'.join(['worker', type_])))[0]
-
     def _create_dispatcher(self):
         get_handler = self.handlers.__getitem__
         event_callback = self.event_callback