Tests: cleanup unused code

tests/devices/test_eanons_humidifier.py

@@ -1,4 +1,3 @@
-from homeassistant.components.binary_sensor import BinarySensorDeviceClass
 from homeassistant.components.fan import FanEntityFeature
 from homeassistant.components.humidifier import HumidifierEntityFeature
 from homeassistant.components.humidifier.const import MODE_AUTO, MODE_NORMAL, MODE_SLEEP

tests/devices/test_wilfa_haze_hu400bc_humidifier.py

@@ -1,4 +1,3 @@
-from homeassistant.components.binary_sensor import BinarySensorDeviceClass
 from homeassistant.components.humidifier import HumidifierEntityFeature
 from homeassistant.components.humidifier.const import MODE_AUTO, MODE_NORMAL
 from homeassistant.components.sensor import SensorDeviceClass