Remove defunct list of Windows installers.

[bhrutledge]

Listed as "Archived" at https://www.cgohlke.com/.

[bhrutledge]

linkcheck is still failing because http://appimage.org/ is down. Per AppImage/AppImageKit#1229, this will hopefully be fixed, so just removing the link doesn't feel right.

Not sure how to handle this. Personally, I find the requirement of linkcheck to pass for PRs to merge to be cumbersome. It'd be nice if there were a way to only check links added in the PR. @webknjaz @pradyunsg any ideas?

[webknjaz]

That would be a feature request for Sphinx. We could integrate my alls-green action to be able to temporarily allow the link check job to fail.

OTOH, this is solvable by adding it to linkcheck_ignore. It'd be interesting to ignore flaky links for a few days/weeks but not permanently. This could be implemented by checking the current date and extending the list dynamically.

[bhrutledge]

Well, it's moot for now, since https://appimage.org/ is back up. 😅

We could integrate my alls-green action to be able to temporarily allow the link check job to fail.

@webknjaz Might be nice to do this in a separate PR, just to have it ready when linkcheck fails again.