code: func (d *DNSProvider) CleanUp(domain, token, keyAuth string) error {
  	fqdn, _ := dns01.GetRecord(domain, keyAuth)
  
  	zoneDomain, records, err := d.findTxtRecords(domain, fqdn)
  	if err != nil {
  		return fmt.Errorf("vultr: %v", err)
  	}
  
  	var allErr []string
  	for _, rec := range records {
  		err := d.client.DeleteDNSRecord(zoneDomain, rec.RecordID)
  		if err != nil {
  			allErr = append(allErr, err.Error())
  		}
  	}
  
  	if len(allErr) > 0 {
  		return errors.New(strings.Join(allErr, ": "))
  	}
  
  	return nil
  }
docs: // CleanUp removes the TXT record matching the specified parameters.