Remove Travis CI playbook run until working on Ubuntu 12.04
Remove Travis CI playbook run until working on Ubuntu 12.04

Realized Travis CI only runs Ubuntu 12.04.  .travis.yml only runs a
syntax check on the role for now until I can update to work on that
host.
Also possible to use Docker containers to test on CentOS 7.
http://bertvv.github.io/notes-to-self/2015/12/11/testing-ansible-roles-with-travis-ci-part-1-centos/

jmeth/ansible-role-docker