The part of the GUI that this setting is relevant for does not exist in a `--disable-wallet` build. 

![wallet_prefs](https://user-images.githubusercontent.com/863730/70331435-72547300-180d-11ea-842d-82f8529ae982.png)
connect(ui->connectSocksTor, &QPushButton::toggled, this, &OptionsDialog::updateProxyValidationState);
    
#ifdef Q_OS_MAC
    
    ui->tabWidget->removeTab(ui->tabWidget->indexOf(ui->tabWindow));
    
    ui->bitcoinAtStartup->setVisible(false);
    ui->verticalLayout_Main->removeWidget(ui->bitcoinAtStartup);
    ui->verticalLayout_Main->removeItem(ui->horizontalSpacer_0_Main);
#endif
    
    if (!enableWallet) {
        ui->tabWidget->removeTab(ui->tabWidget->indexOf(ui->tabWallet));
    }
    
    QDir translations(":translations");
    ui->bitcoinAtStartup->setToolTip(ui->bitcoinAtStartup->toolTip().arg(PACKAGE_NAME));
    ui->bitcoinAtStartup->setText(ui->bitcoinAtStartup->text().arg(PACKAGE_NAME));
    ui->openBitcoinConfButton->setToolTip(ui->openBitcoinConfButton->toolTip().arg(PACKAGE_NAME));
    ui->lang->setToolTip(ui->lang->toolTip().arg(PACKAGE_NAME));
    ui->lang->addItem(QString("(") + tr("default") + QString(")"), QVariant(""));
    for (const QString &langStr : translations.entryList())
    {
        QLocale locale(langStr);
        
        if(langStr.contains("_"))
        {
            
            ui->lang->addItem(locale.nativeLanguageName() + QString(" - ") + locale.nativeCountryName() + QString(" (") + langStr + QString(")"), QVariant(langStr));
        }