Run `src/qt/bitcoin-qt --disablewallet=1`. 
Quitting after any amount of time will result in `Segmentation fault: 11`

0.14.0 branch at 861cb0c83db0571c2863f6b6276314e115c266ee , osx 10.12.3, Qt5.8
{
    switch(status)
    {
    case WalletModel::Unencrypted:
        labelWalletEncryptionIcon->hide();
        encryptWalletAction->setChecked(false);
        changePassphraseAction->setEnabled(false);
        encryptWalletAction->setEnabled(true);
        break;
    case WalletModel::Unlocked:
        labelWalletEncryptionIcon->show();
        labelWalletEncryptionIcon->setPixmap(platformStyle->SingleColorIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
        labelWalletEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
        encryptWalletAction->setChecked(true);
        changePassphraseAction->setEnabled(true);
        encryptWalletAction->setEnabled(false); 
        break;
    case WalletModel::Locked:
        labelWalletEncryptionIcon->show();
        labelWalletEncryptionIcon->setPixmap(platformStyle->SingleColorIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
        labelWalletEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
        encryptWalletAction->setChecked(true);
        changePassphraseAction->setEnabled(true);
        encryptWalletAction->setEnabled(false); 
        break;
    }
}
#endif 
void BitcoinGUI::showNormalIfMinimized(bool fToggleHidden)