remove pypi deployment

Author: brentru

.travis.yml

@@ -11,12 +11,6 @@ python:
 cache:
   pip: true
 
-# TODO: if deployment to PyPi is desired, change 'DEPLOY_PYPI' to "true",
-#       or remove the env block entirely and remove the condition in the
-#       deploy block.
-env:
-  - DEPLOY_PYPI="false"
-
 deploy:
   - provider: releases
     api_key: "$GITHUB_TOKEN"