Thanks for the quick reply. Your CSS hack does indeed hide the buttons from view, but they are still loaded in the background. From the perspective of tracking I'm not too happy with just hiding the buttons.
I took a look in the source and saw that this was indeed not as easy as a simple setting. I have removed the "tz_portfolio_like_button" sections, which I'll continue to do for newer versions. Or I'll try a smart fix with your -child theme.
However I do urge you to make a toggle for this under theme settings. I think that a lot of users of people with personal profile pages have no use for this feature and it would be a clean solution to remove such a section vs only hiding it.