Remove unused and potentially confusing property

homeassistant/components/sun.py

@@ -144,12 +144,6 @@ class Sun(Entity):
         self._state = self.next_rising = self.next_setting = None
         track_utc_time_change(hass, self.timer_update, second=30)
 
-    @property
-    def should_poll(self):
-        """ We trigger updates ourselves after sunset/sunrise,
-            but sun angle requires poll """
-        return True
-
     @property
     def name(self):
         return "Sun"