This change combines the previous puppet and docker files into a single
file that performs the docker service installation and configuration
for the neutron-metadata, neutron-ovs-agent, and neutron-ovs-dpdk-agent.
With this patch the baremetal version of each respective neutron service
has been removed.
Related-Blueprint: services-yaml-flattening
Change-Id: I7a918e72ce4bfd06a95d7a575603a6fb65ded5a9