code: func (s *PrivateAccountAPI) Unpair(ctx context.Context, url string, pin string) error {
  	wallet, err := s.am.Wallet(url)
  	if err != nil {
  		return err
  	}
  
  	switch wallet := wallet.(type) {
  	case *scwallet.Wallet:
  		return wallet.Unpair([]byte(pin))
  	default:
  		return fmt.Errorf("Specified wallet does not support pairing")
  	}
  }
docs: // Unpair deletes a pairing between wallet and geth.