Fix puppet/services/README.rst step description
Fix puppet/services/README.rst step description

We removed Step 6 in Iae33149e4a03cd64c5831e689be8189ad0cf034b
but forgot to update the README.  Similarly we made all roles
use the same steps in Ia2ea559e8eeb64763908f75705e3728ee90b5744
so the comment is no longer true.

Change-Id: If5482ebd22a2547ed2165199992840a0dcacb04c

dprince/tripleo-heat-templates,openstack/tripleo-heat-templates,dprince/tripleo-heat-templates,openstack/tripleo-heat-templates