Remove zanata configuration from .travis.yml
Remove zanata configuration from .travis.yml

There's a deploy job to push to zanata in Travis. It caused Travis
failed when when PR is merged into master. Since we do not use
zanata any more, zanata setting should be removed.
Failed deploy job can be found from
https://travis-ci.org/github/weldr/cockpit-composer/jobs/667298469?utm_medium=notification&utm_source=github_status

Closes #918
weldr/welder-web,jkozol/welder-web,jkozol/welder-web,jkozol/welder-web,weldr/welder-web,weldr/welder-web,weldr/welder-web,jkozol/welder-web