BuddyPress.org

chukkide-

Burt is correct. This is not the way that BP works. You asked how the slug can be removed, not how can you change the slug title. To do that, read this.

But, to remove the slug completely, as you asked, is outside the purview of BP. It may be possible with some fancy .htaccess rewrite rules, but it could cause issues with the way BP works.