Bug 583167 - remove-ds.pl gives error Couldn't open /etc/sysconfig/dirsrv-$INSTANCE
    
    https://bugzilla.redhat.com/show_bug.cgi?id=583167
    Resolves: bug 583167
    Bug Description: remove-ds.pl gives error Couldn't open /etc/sysconfig/dirsrv-$INSTANCE
    Reviewed by: nkinder (Thanks!)
    Branch: Directory_Server_8_2_Branch
    Fix Description: Look for INSTANCE=name and use name as the instance name.
    Platforms tested: RHEL5 x86_64
    Flag Day: no
    Doc impact: no