Closed issue by ericonr on void-packages repository

https://github.com/void-linux/void-packages/issues/25052

Description:
Running `python3 setup.py test` outputs the following message:

```
WARNING: Testing via this command is deprecated and will be removed in a future version. Users looking for a generic test entry point independent of test runner are encouraged to use tox.
```

Should we add `tox` to everything instead, or should packagers specify the tools themselves for all templates? In any case, it might make sense to fully remove `setup.py test` as something that `do_check` does.