How to remove the bottom panel with buttons?

I was able to customize my installer based on Qt Installer Framework to some degree.

I was able to automate button click to advance to next page

gui.clickButton(buttons.NextButton)

hide the back button (by removing previous pages) and even disable the next button

Controller.prototype.DynamicMyPageCallback = function()
{
    var currentWidget = gui.currentPageWidget();
    if (currentWidget != null)
    {
        currentWidget.complete = false
    }
}

Next thing I would like to do is to remove the bottom panel which contains Next and Quit buttons. Is that possible?

from How to remove the bottom panel with buttons?