Improve clean-repo-sidebar - #5405

Hide "Learn more about GitHub Sponsors" link (a "by-product" of selector changes, but shouldn't be controversial)

+1 if it allows us to drop some JS.

I remember this being rejected before though. That said, back then Sponsors where a new thing so it made sense to keep it.

I remember this being rejected before though.

Did you mean #3974 (comment)? But the claims sounds invalid to me though:

• "the link is unique": there's a link to the docs in the sponsor page's footer that seems to be more useful.

  

• "it’s not an obvious feature": does the marketing page it links to make things more obvious?

That said, back then Sponsors where a new thing so it made sense to keep it.

It isn't a new thing then either.

This PR broke some readme rendered markdown, see #5410