Can you be more specific in what file and if in assets/templates/sections or layout? I went thru many liquids looking for "hr stuff" and trying to comment it off. The only line I got rid of was in assets >> theme.scss.liquid where I added border-style: none on several of those. In that case the small vertical divider lines dissapeared from the products. So that one is managed.
But still, the larger vertical divider lines are in one of my page (using full width templ on that one) and in my burger menus between the main manu links.
It's a jungle out there, so if someone have a solution or at least where to look, I would be most grateful.