'Deletes a previously scheduled action.
:type scheduled_action_name: str
:param scheduled_action_name: The name of the action you want
to delete.
:type autoscale_group: str
:param autoscale_group: The name of the autoscale group.'

def delete_scheduled_action(self, scheduled_action_name, autoscale_group=None):

    params = {'ScheduledActionName': scheduled_action_name}
    if autoscale_group:
        params['AutoScalingGroupName'] = autoscale_group
    return self.get_status('DeleteScheduledAction', params)
