L2SS-1793: Stop polling all attributes using PyTango

tangostationcontrol/tangostationcontrol/devices/observation_field.py

@@ -357,10 +357,6 @@ class ObservationField(LOFARDevice):
             self._observation_field_settings.antenna_field,
         )
 
-        # TODO(JDM): Somehow this does not get configured automatically
-        # as it does for non-dynamic devices.
-        self.poll_command("poll_attributes", DEFAULT_METRICS_POLLING_PERIOD)
-
     def configure_for_off(self):
         """Indicate the observation has stopped"""