Drop device_class in wallbox number (#62438)

Co-authored-by: epenet <epenet@users.noreply.github.com>

homeassistant/components/wallbox/number.py

@@ -6,7 +6,6 @@ from typing import Optional, cast
 
 from homeassistant.components.number import NumberEntity, NumberEntityDescription
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import DEVICE_CLASS_CURRENT
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
@@ -29,7 +28,6 @@ NUMBER_TYPES: dict[str, WallboxNumberEntityDescription] = {
     CONF_MAX_CHARGING_CURRENT_KEY: WallboxNumberEntityDescription(
         key=CONF_MAX_CHARGING_CURRENT_KEY,
         name="Max. Charging Current",
-        device_class=DEVICE_CLASS_CURRENT,
         min_value=6,
     ),
 }