diff --git a/homeassistant/components/mill/sensor.py b/homeassistant/components/mill/sensor.py
index 2607708cafd..c4b975ab039 100644
--- a/homeassistant/components/mill/sensor.py
+++ b/homeassistant/components/mill/sensor.py
@@ -107,16 +107,6 @@ SENSOR_TYPES: tuple[SensorEntityDescription, ...] = (
     ),
 )
 
-SOCKET_SENSOR_TYPES: tuple[SensorEntityDescription, ...] = (
-    SensorEntityDescription(
-        key=HUMIDITY,
-        device_class=SensorDeviceClass.HUMIDITY,
-        native_unit_of_measurement=PERCENTAGE,
-        state_class=SensorStateClass.MEASUREMENT,
-    ),
-    *HEATER_SENSOR_TYPES,
-)
-
 LOCAL_SENSOR_TYPES: tuple[SensorEntityDescription, ...] = (
     SensorEntityDescription(
         key="control_signal",