Do not use a battery device class for Shelly analog input sensor (#109311)

Co-authored-by: Maciej Bieniek <478555+bieniu@users.noreply.github.com>

homeassistant/components/shelly/sensor.py

@@ -958,7 +958,6 @@ RPC_SENSORS: Final = {
         sub_key="percent",
         name="Analog input",
         native_unit_of_measurement=PERCENTAGE,
-        device_class=SensorDeviceClass.BATTERY,
         state_class=SensorStateClass.MEASUREMENT,
     ),
 }