Test Results:


[root@ask-02 test]# rpm -q ccs
ccs-0.16.2-63.el6_4.1.x86_64
[root@ask-02 test]# ccs -f tc3.conf --createcluster tc3
[root@ask-02 test]# ccs -f tc3.conf --setuidgid uid=testuid gid=testgid
[root@ask-02 test]# cat tc3.conf | grep uidgid
  <uidgid gid="testgid" uid="testuid"/>
[root@ask-02 test]# ccs -f tc3.conf --rmuidgid uid=testuid gid=testgid
Removing uid=testuid, gid=testgid
[root@ask-02 test]# cat tc3.conf | grep uidgid

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2013-1822.html