Remove unused puppet-ptp
Remove unused puppet-ptp

Usage of puppet-ptp was removed by [1]. This change removes the module
from test requirements.

[1] 1015d5ab010cf6d1c6924c88d20aa75a09bca5b2

Change-Id: Ie7936c10db92e76d9b346dd06b9db6e3c51c663e

openstack/puppet-tripleo,openstack/puppet-tripleo,openstack/puppet-tripleo