Remove old unused scripts from `misc/`

[sobolevn]

I've gone through all scripts in misc/ and scripts/. Here's what I found:

1. There was only one script in scripts/, so I moved it to misc/, not sure if it is still needed though: we now have existing IDE integrations, including emacs
2. I removed old files created back in 2016, that were never touched afterwards (except with autoformatters)

Please, correct me if I am removing something useful. Maybe there are other outdated / unused scripts that I've missed?

Refs https://github.com/python/mypy/pull/2117

[github-actions[bot]]

According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉

[github-actions[bot]]

According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉

[github-actions[bot]]

According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉

[sobolevn]

Thank you, @JukkaL!