Remove default values from calls to async_fire (#109613)

There were a few places were we passing unnecessary default values. Since
this code tends to get copied, remove them

homeassistant/core.py

@@ -1797,7 +1797,6 @@ class StateMachine:
         self._bus.async_fire(
             EVENT_STATE_CHANGED,
             {"entity_id": entity_id, "old_state": old_state, "new_state": None},
-            EventOrigin.local,
             context=context,
         )
         return True
@@ -1932,8 +1931,7 @@ class StateMachine:
         self._bus.async_fire(
             EVENT_STATE_CHANGED,
             {"entity_id": entity_id, "old_state": old_state, "new_state": state},
-            EventOrigin.local,
-            context,
+            context=context,
             time_fired=now,
         )