Revert "fixed arrow spacing when calculating scrollbar holes."
Revert "fixed arrow spacing when calculating scrollbar holes."

This reverts commit c9dd3d575420e981712a0569da743282d144498d.

blueshell-next/carbon-gtk,blue-shell/carbon-gtk,blue-shell/carbon-gtk,blueshell-next/carbon-gtk,KDE/oxygen-gtk,KDE/oxygen-gtk