Remove .gitignore in anticipation of merging with s2i

.gitignore

@@ -1,26 +0,0 @@
-node_modules
-*.py[co]
-*~
-.cache
-.DS_Store
-build
-dist
-docs/_build
-docs/source/_static/rest-api
-.ipynb_checkpoints
-# ignore config file at the top-level of the repo
-# but not sub-dirs
-/jupyterhub_config.py
-jupyterhub_cookie_secret
-jupyterhub.sqlite
-share/jupyter/hub/static/components
-share/jupyter/hub/static/css/style.min.css
-share/jupyter/hub/static/css/style.min.css.map
-*.egg-info
-MANIFEST
-.coverage
-htmlcov
-bin/
-lib/
-include/
-share/