code: func (d *DNSProvider) CleanUp(domain, token, keyAuth string) error {
  	_, value := dns01.GetRecord(domain, keyAuth)
  
  	err := d.deleteTxtRecord(domain, value)
  	if err != nil {
  		return fmt.Errorf("iij: %v", err)
  	}
  	return nil
  }
docs: // CleanUp removes the TXT record matching the specified parameters