rfc27: drop sched.queue as scheduler annotation

[grondo]

Problem: RFC 27 lists sched.queue as a known scheduler annotation, but this annotation is not used anywhere since schedulers do not assign queues.

Drop the annotation to avoid confusion.

For background, Fluxion did set a sched.queue annotation early on when it had a default queue config parameter, but this was removed in flux-framework/flux-sched#971.

[github-actions]

⚠️ linkcheck failed with status code 2

[wihobbs]

I was thinking about this the other day and here's one reason to consider keeping it:

• With the inclusion of vqueues it might be good to have a record of the non-virtual queue the job actually was scheduled in for historical purposes. Is that data gathered anywhere else in the job's metadata?

edit: if that data is already collected elsewhere, I'm happy to approve this PR.

@milroy agreed with your assessment, btw, that this annotation was probably a relic from early Fluxion.

[grondo]

With the inclusion of vqueues it might be good to have a record of the non-virtual queue the job actually was scheduled in for historical purposes. Is that data gathered anywhere else in the job's metadata?

I don't think it is, but if that was added, it probably wouldn't be under the sched.* namespace, since queue management is now done at the flux-core level. Some sort of memo or other annotation could be added if sites wish to keep a record of the parent queue to which a vqueue maps on a per-job basis.

[wihobbs]

A simple test on tuolumne and a git grep suggests edit: corroborates :) this isn't set anywhere by Fluxion. Approving.

[mergify]

Queued — the merge queue status continues in this comment ↓.

[grondo]

Thanks! Setting MWP.

[mergify]

Merge Queue Status

• ✅ Entered queue — 2026-08-13 00:22 UTC · Rule: default · triggered by rule rebase and merge when passing all checks
• ✅ Checks skipped · PR is already up-to-date
• ✅ Merged — 2026-08-13 00:22 UTC · at 72dec599c9927e574d676bd3d9bc979cdcf64a6c · merge

This pull request spent 15 seconds in the queue, including 2 seconds running CI.

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