Remove non-container based local testing environment tooling

[Hyodar]

We don't have much of a use for the non-container based testing environment currently (i.e. the first setup option, besides docker compose). The real environment is already container-based, so using containers is actually better, and there's not really an overhead in maintaining the containers locally. I propose we simply remove the related tooling and documentation (mainly some make recipes and instructions) instead of keeping support for something we're not using.