Well you add $2 into the ruser command.
If the level to be removed is specified $2 will be that level, if not then $2 will be the nick and all levels will be removed.
- !removeauth [level] <nick> <- removes [level]
!removeauth <nick> <- removes ALL levels
on *:text:!removeauth*:#channel:{
if ($ulevel == 11) {
ruser $$2 $3 6
if $3 { msg $chan Auth lvl $2 has been removed from $3 }
else msg # All levels have been removed from $2
}
}