power: Don't query a gpio line in "refresh_status"

On some devices gpiod does not report the correct state.  Since Moonraker maintains exclusive control over GPIO lines, its unnecessary to query the line itself for state, as we can maintain it ourselves.

Signed-off-by:  Eric Callahan <arksine.code@gmail.com>

moonraker/components/power.py

@@ -352,14 +352,7 @@ class GpioDevice(PowerDevice):
         self.set_power("on" if self.initial_state else "off")
 
     def refresh_status(self):
-        try:
-            val = self.line.get_value()
-        except Exception:
-            self.state = "error"
-            msg = f"Error Refeshing Device Status: {self.name}"
-            logging.exception(msg)
-            raise self.server.error(msg) from None
-        self.state = "on" if val else "off"
+        pass
 
     def set_power(self, state):
         try: