Delete Buildbot

[12345swordy]

Got approval from ivand regarding this. It didn't effect me building the engine so unless anyone objects this, I am deleting the folder.

[sprunk]

There seem to be two things done in those scripts:

• produce core engine artifacts (i.e. just run compilation and build the engine). This part is no longer useful and good to remove.
• do a bunch of release-adjacent tasks. Run some sort of tests (!), upload docs to mediawiki etc. Perhaps people who usually do infra/CI (@p2004a ?) and docs/site (@badosu ?) could look if there is anything useful down there. I expect not really so don't consider it a blocker if they don't respond.

[badosu]

Docs uses GitHub actions exclusively, if those aren't affected this should be fine (in the scope of docs)

[sprunk]

Yes, I mean more like "oh this is solving a nice edge case we haven't thought of". For example it changes C++ std::string to Lua string for weapondef doc which our GitHub actions runner doesn't do.

[p2004a]

I looked through it, there is a bunch of interesting stuff, so I will remember it existed: nothing is lost in git history.

[badosu]

Yes, I mean more like "oh this is solving a nice edge case we haven't thought of". For example it changes C++ std::string to Lua string for weapondef doc which our GitHub actions runner doesn't do.

Interesting, I've never ran buildbot locally so I was unaware of this. Even if it is desirable to have that postprocessing (since it's already there), I don't think the value is good for the complexity. The output format is something that should be processed by the engine itself imo.