message: [GUI] Send widget, delete dialog if it's not used anymore.
diff: @@ -378,6 +378,7 @@ bool SendWidget::send(QList<SendCoinsRecipient> recipients){
  if (sendStatus.status == WalletModel::OK) {
  clearAll();
  inform(tr("Transaction sent"));
  + dialog->deleteLater();
  return true;
  }
  }
  