Remove unnecessary files

[leotrs]

It seems that perf_scenes.py was added by someone making their own performance tests on an example scene. We can achieve the same but with a more organized test suite, in the future.

It is unclear to me exactly what stage_scenes.py is doing, but it is clearly only meant for the original author's private setup. If a script like this one becomes useful in the future, we can better position it inside a scripts/ folder, for example. It would not be hard to rewrite from scratch.

[eulertour]

WDYT of removing the 3b1b stuff in LICENSE? Also, environment.yml was only for conda environments, which I'd suggest is too specific to be included in the upstream repo.

[huguesdevimeux]

I was just wondering, Is a perf test a useful thing though ? We could easily implement itW

[eulertour]

Also, what should be done about once_useful_constructs/? A lot of it is sure to not even work anymore.

[leotrs]

@eulertour The NOTE.md in that folder reads

This folder contains a collection of various things that were built for a video at some point, but were really one-off and should be given more careful consideration before being brought into the main library. In particular, there is really no guarantee of these being fully functional.

I'd say we nuke the whole folder. If anything there is of interest for a future feature, we can always check those files out from Grant's repo.

[leotrs]

RE the 3b1b stuff in LICENSE, since the folder it refers to has been deleted, we should delete it too. Yes?

[leotrs]

OK I think that's about it for now.