Remove unused variables from _async_sensor_changed method in XiaomiAirConditioningCompanion class

Author: JamesLiang23

custom_components/xiaomi_miio_airconditioningcompanion/climate.py

@@ -299,8 +299,6 @@ async def _async_update_power_state(self, state):
 
     async def _async_sensor_changed(self, event):
         """Handle temperature changes."""
-        entity_id = event.data["entity_id"]
-        old_state = event.data["old_state"]
         new_state = event.data["new_state"]
         if new_state is None:
             return