Update sensor.py

Revert all changes and sync again with master.

custom_components/repsolluzygas/sensor.py

@@ -1,14 +1,9 @@
 """Platform for sensor integration."""
 from .repsol_api import RepsolLuzYGasSensor
 from homeassistant.helpers.entity import Entity
-from homeassistant.components.sensor import (
-    PLATFORM_SCHEMA,
-    STATE_CLASS_MEASUREMENT,
-    SensorEntity,
-)
-from homeassistant.const import CONF_HOST, CONF_PASSWORD, CONF_USERNAME, DEVICE_CLASS_ENERGY, ENERGY_KILO_WATT_HOUR
+from homeassistant.components.sensor import PLATFORM_SCHEMA
+from homeassistant.const import CONF_HOST, CONF_PASSWORD, CONF_USERNAME
 import voluptuous as vol
-from homeassistant.util import dt as dt_util
 import homeassistant.helpers.config_validation as cv
 from datetime import timedelta
 import requests
@@ -49,10 +44,8 @@ def __init__(self, client, name, variable, unit, is_master):
         self._name = name
         self.variable = variable
         self.is_master = is_master
-        if self.unit = ENERGY_KILO_WATT_HOUR:
-            self._attr_state_class == STATE_CLASS_MEASUREMENT
-            self._attr_device_class = DEVICE_CLASS_ENERGY
-            self._attr_last_reset = dt_util.utc_from_timestamp(0)
+        self.unit = unit
+
 
     @property
     def name(self):