Its possible to assign a group the moderating power on just one category, However be aware that this will also include other moderation powers such as Forking, Closing and Moving topics.
@Joenel-de-Asis172 That is actually the best way to do it.
The other way would be to remove that html from the profile template in your theme. However, unless you are making your own custom theme, your changes may get overwritten when the theme updates.
So CSS is the way to go.
