Noticed this while reviewing #13529, but it's also in master @ 5ba77df15. On macOS 10.13.6:

```
bitcoin-qt -disablewallet
```

<img width="1354" alt="schermafbeelding 2018-08-01 om 16 03 41" src="https://user-images.githubusercontent.com/10217/43526506-b23264d8-95a4-11e8-81a0-5debcad838ae.png">

The usual progress modal doesn't appear when QT starts, and clicking on the progress bar has no effect. It works fine when there's a wallet present.
}
    notificator = new Notificator(QApplication::applicationName(), trayIcon, this);
    
    statusBar();
    
    statusBar()->setSizeGripEnabled(false);
    
    QFrame *frameBlocks = new QFrame();
    frameBlocks->setContentsMargins(0,0,0,0);
    frameBlocks->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Preferred);
    QHBoxLayout *frameBlocksLayout = new QHBoxLayout(frameBlocks);
    frameBlocksLayout->setContentsMargins(3,0,3,0);
    frameBlocksLayout->setSpacing(3);
    unitDisplayControl = new UnitDisplayStatusBarControl(platformStyle);
    labelWalletEncryptionIcon = new QLabel();
    labelWalletHDStatusIcon = new QLabel();
    labelProxyIcon = new GUIUtil::ClickableLabel();
    connectionsControl = new GUIUtil::ClickableLabel();
    labelBlocksIcon = new GUIUtil::ClickableLabel();
    if(enableWallet)
    {
        frameBlocksLayout->addStretch();
        frameBlocksLayout->addWidget(unitDisplayControl);
        frameBlocksLayout->addStretch();
        frameBlocksLayout->addWidget(labelWalletEncryptionIcon);
        frameBlocksLayout->addWidget(labelWalletHDStatusIcon);
    }
    frameBlocksLayout->addWidget(labelProxyIcon);
    frameBlocksLayout->addStretch();
    frameBlocksLayout->addWidget(connectionsControl);