Legacy collection of OpenStack related Puppet modules for Packstack, Staypuft and TripleO had been replaced[1] by RPM packaging of individual Puppet modules since RDO Newton.
There has been backward compat meta-package openstack-puppet-modules requiring all the modules which RDO will drop in Pike.
There are still usages of openstack-puppet-modules [2] in TripleO project which need to be replaced by either listing of individual puppet-* RPMs or by puppet-tripleo, in case TripleO wants to maintain single central list of Puppet modules.
[1] https://github.com/redhat-openstack/openstack-puppet-modules/blob/master/README
[2] http://codesearch.openstack.org/?q=openstack-puppet-modules&i=nope&files=&repos=
openstack- puppet- modules is still listed in multiple TripleO repos, so this will miss Pike?