Component.onDestruction duplicate code for hide slide window

[costales]

This code is redundant:
    Component.onDestruction: {
        // Hide 2nd column when returning to the map to avoid an empty white column
        if (mainPageStack.columns === 1)
            mainPageStack.hideSideBar()
    }

Because the component CloseHeaderAction.qml is hidden (and removing) that slide window too:
    onTriggered: {
        mainPageStack.hideSideBar()
        mainPageStack.removePages(mainPageStack.primaryPage)
    }