code: func (d *DNSProvider) CleanUp(domain, token, keyAuth string) error {
  	fqdn, _ := dns01.GetRecord(domain, keyAuth)
  
  	zone, err := d.getHostedZone(fqdn)
  	if err != nil {
  		return fmt.Errorf("ns1: %v", err)
  	}
  
  	name := dns01.UnFqdn(fqdn)
  	_, err = d.client.Records.Delete(zone.Zone, name, "TXT")
  	if err != nil {
  		return fmt.Errorf("ns1: failed to delete record [zone: %q, domain: %q]: %v", zone.Zone, name, err)
  	}
  	return nil
  }
docs: // CleanUp removes the TXT record matching the specified parameters.