Hi @ehandelsforeningen,
The FontAwesome fonts are added with two @font-face rules in style.css, so you can’t dequeue them in a child theme (without replacing the parent theme stylesheet entirely, that is). You could rename the fonts folder, but that would result in 404:s when/if the FontAwesome fonts are used.
— Anders
On second thought, I’m moving the FontAwesome @font-face rules to their own file in the next version, and setting them to not be loaded unless the social menu is in use. (I’ll also include a filter, so child themes can force them to be loaded whether the social menu is active or not.)