Avoid linear search to clear labels and areas in the device registry (#115676)

homeassistant/helpers/device_registry.py

@@ -1053,18 +1053,14 @@ class DeviceRegistry(BaseRegistry[dict[str, list[dict[str, Any]]]]):
     @callback
     def async_clear_area_id(self, area_id: str) -> None:
         """Clear area id from registry entries."""
-        for dev_id, device in self.devices.items():
-            if area_id == device.area_id:
-                self.async_update_device(dev_id, area_id=None)
+        for device in self.devices.get_devices_for_area_id(area_id):
+            self.async_update_device(device.id, area_id=None)
 
     @callback
     def async_clear_label_id(self, label_id: str) -> None:
         """Clear label from registry entries."""
-        for device_id, entry in self.devices.items():
-            if label_id in entry.labels:
-                labels = entry.labels.copy()
-                labels.remove(label_id)
-                self.async_update_device(device_id, labels=labels)
+        for device in self.devices.get_devices_for_label(label_id):
+            self.async_update_device(device.id, labels=device.labels - {label_id})
 
 
 @callback