[CentOS-devel] Why are Spacewalk packages removed from CentOS?

Hi,
severals users of Spacewalk [1] reported that Spacewalk client tools are 
removed [2] from CentOS (they are present in RHEL).

It's about packages:
  rhn-check
  rhn-client-tools
  rhnlib
  rhnsd
  rhn-setup
  rhn-setup-gnome
  yum-rhn-plugin

I dig up in history [3] and find that the reason was probably reference 
to rhn.redhat.com. Since current Spacewalk (default) configuration 
should not hit rhn.redhat.com I'm curious if those packages can be put 
back to CentOS?
Or is some other reason behind removal of those packages?

1: https://fedorahosted.org/spacewalk/
2: 
http://wiki.centos.org/Manuals/ReleaseNotes/CentOS5.4#head-6dfcd9ddca9da9913268c2192ff83c5207442aa8
3: https://www.redhat.com/archives/spacewalk-devel/2008-July/msg00042.html
-- 
Miroslav Suchy
Red Hat Satellite Engineering
Cloud Computing and Integrated Solution Dept.