Remove Wiz entity descriptions required fields mixins (#104005)

homeassistant/components/wiz/number.py

@@ -22,20 +22,13 @@
 from .models import WizData
 
 
-@dataclass
-class WizNumberEntityDescriptionMixin:
-    """Mixin to describe a WiZ number entity."""
+@dataclass(kw_only=True)
+class WizNumberEntityDescription(NumberEntityDescription):
+    """Class to describe a WiZ number entity."""
 
-    value_fn: Callable[[wizlight], int | None]
-    set_value_fn: Callable[[wizlight, int], Coroutine[None, None, None]]
     required_feature: str
-
-
-@dataclass
-class WizNumberEntityDescription(
-    NumberEntityDescription, WizNumberEntityDescriptionMixin
-):
-    """Class to describe a WiZ number entity."""
+    set_value_fn: Callable[[wizlight, int], Coroutine[None, None, None]]
+    value_fn: Callable[[wizlight], int | None]
 
 
 async def _async_set_speed(device: wizlight, speed: int) -> None: