Remove entity picture of Tuya entity (#15611)

homeassistant/components/tuya.py

@@ -142,11 +142,6 @@ def name(self):
         """Return Tuya device name."""
         return self.tuya.name()
 
-    @property
-    def entity_picture(self):
-        """Return the entity picture to use in the frontend, if any."""
-        return self.tuya.iconurl()
-
     @property
     def available(self):
         """Return if the device is available."""