Remove invalid state class in deconz (#85615)

homeassistant/components/deconz/sensor.py

@@ -112,7 +112,6 @@ ENTITY_DESCRIPTIONS: tuple[DeconzSensorDescription, ...] = (
         update_key="airquality",
         value_fn=lambda device: device.air_quality,
         instance_check=AirQuality,
-        state_class=SensorStateClass.MEASUREMENT,
     ),
     DeconzSensorDescription[AirQuality](
         key="air_quality_ppb",

tests/components/deconz/test_sensor.py

@@ -62,9 +62,8 @@ TEST_DATA = [
             "state": "poor",
             "entity_category": None,
             "device_class": None,
-            "state_class": SensorStateClass.MEASUREMENT,
+            "state_class": None,
             "attributes": {
-                "state_class": "measurement",
                 "friendly_name": "BOSCH Air quality sensor",
             },
             "websocket_event": {"state": {"airquality": "excellent"}},