code: def remove_zone(self, zone_id):
          
          updated_zones = []
          for zone in self.my_osid_object_form._my_map['zones']:
              if zone['id'] != zone_id:
                  updated_zones.append(zone)
          self.my_osid_object_form._my_map['zones'] = updated_zones
docs: remove a zone, given the id