STYLE Remove flake8-rst

[DeaMariaLeon]

• closes #xxxx (Replace xxxx with the GitHub issue number)
• Tests added and passed if fixing a bug or adding a new feature
• All code checks passed.
• Added type annotations to new arguments/methods/functions.
• Added an entry in the latest doc/source/whatsnew/vX.X.X.rst file if fixing a bug or adding a new feature.

flake8-rst is unmantained. It causes errors on Python3.10 - (Explanation by @MarcoGorelli)

[MarcoGorelli]

thanks @DeaMariaLeon !

there's an issue about replacing flake8-rst with something maintained, if we find it we can use that. for now, if this one keeps causing issues (I've run into issues with it on newer Python versions), it's probably best to just get rid of it

[DeaMariaLeon]

Thanks @MarcoGorelli
Linking to the issue you mention: #46865

[MarcoGorelli]

cool, let's merge, and if/when we find an alternative we can put it back

thanks @DeaMariaLeon !

[mroeschke]

So confirming we won't have flake8 checking on our rst files in the meantime?

[DeaMariaLeon]

That's what I understand @mroeschke.

[MarcoGorelli]

that's right unfortunately...I'll see if I can fork it, shouldn't be too big of a deal to make it compatible with latest versions of things