ntp: use default NTP servers
ntp: use default NTP servers

default are:
  0.debian.pool.ntp.org
  1.debian.pool.ntp.org
  2.debian.pool.ntp.org
  3.debian.pool.ntp.org

gwdg/puppet-openstack-cloud,gwdg/puppet-openstack-cloud,goneri/puppet-openstack-cloud,Prophidys/puppet-openstack-cloud,redhat-cip/puppet-openstack-cloud,gwdg/puppet-openstack-cloud,gwdg/puppet-openstack-cloud,goneri/puppet-openstack-cloud,redhat-cip/puppet-openstack-cloud,Prophidys/puppet-openstack-cloud,Prophidys/puppet-openstack-cloud,redhat-cip/puppet-openstack-cloud