Cannot remove filesystem ACLs

[Victor Sudakov]

Colleagues,

I don't understand why I cannot completely remove the ACLs from a
directory. Please look:


# setfacl -b /home/dogovor.common/
# setfacl -k /home/dogovor.common/
# ls -ald !$
ls -ald /home/dogovor.common/
drwxrwx---+ 4 nastenkoea  dogovor  3584 13 янв 09:35 /home/dogovor.common/
# getfacl !$
getfacl /home/dogovor.common/
# file: /home/dogovor.common/
# owner: nastenkoea
# group: dogovor
user::rwx
group::rwx
mask::rwx
other::---
#

Why are the "+" sign and the mask entry still there? How do I get rid
of them completely? 

TIA for any input.
FreeBSD 8.1-RELEASE-p2 i386

-- 
Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
sip:sudakov at sibptus.tomsk.ru