code: def del_all_svc_downtimes(self, service):
          
          for downtime in service.downtimes:
              self.del_svc_downtime(downtime)
          self.send_an_element(service.get_update_status_brok())
docs: Delete all service downtime
          Format of the line that triggers function call::
  
          DEL_ALL_SVC_DOWNTIMES;<host_name>;<service_description>
  
          :param service: service to edit
          :type service: alignak.objects.service.Service
          :return: None