Correct SELinux policy requirements
    
    freeipa-selinux subpackage is used by both client and server but
    requires freeipa-server subpackage unconditionally. This needs to be
    removed.
    
    Originally, upstream spec file did not have this bug. It was brought
    in with unification of the specfiles.
    
    Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1883005
    
    Signed-off-by: Alexander Bokovoy <abokovoy@redhat.com>