Remove pulp-smash from pypi
Ticket moved to GitHub: "pulp/pulpcore/2056":https://github.com/pulp/pulpcore/issues/2056
We should use pulp-smash from source instead of having to release it every time there's a change.
The one last place I know of that pulp-smash is used from PyPI is the Pulp-2-Tests. I opened a PR to fix this but the tests were failing: