docs: def agent_check_deregister(consul_url=None, token=None, checkid=None):
      '''
      The agent will take care of deregistering the check from the Catalog.
  
      :param consul_url: The Consul server URL.
      :param checkid: The ID of the check to deregister from Consul.
      :return: Boolean and message indicating success or failure.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' consul.agent_check_deregister checkid='Memory Utilization'
  
      '''
      ret = {}
      if not consul_url:
          consul_url = _get_config()
          if not consul_url:
              log.error('No Consul URL found.')
              ret['message'] = 'No Consul URL found.'
              ret['res'] = False
              return ret
  
      if not checkid:
          raise SaltInvocationError('Required argument "checkid" is missing.')
  
      function = 'agent/check/deregister/{0}'.format(checkid)
      res = _query(consul_url=consul_url,
                   function=function,
                   token=token,
                   method='GET')
      if res['res']:
          ret['res'] = True
          ret['message'] = ('Check {0} removed from agent.'.format(checkid))
      else:
          ret['res'] = False
          ret['message'] = 'Unable to remove check from agent.'
      return ret