[Docs] Remove deprecated config: align_queries_with_step

[leehack]

What this PR does

Remove deprecated config that was removed since 2.14.

Checklist

• Tests updated.
• Documentation added.
• CHANGELOG.md updated - the order of entries should be [CHANGE], [FEATURE], [ENHANCEMENT], [BUGFIX].
• about-versioning.md updated with experimental features.

[CLAassistant]

All committers have signed the CLA.

[leehack]

For context: After updating Mimir to 2.15, our Mimir workloads entered a crashloop due to a misconfiguration. This was confusing as the latest official documentation still lists the problematic configuration parameter.

[56quarters]

I don't think this PR is valid. The setting you've mentioned, YAML limits.align_queries_with_step and CLI -query-frontend.align-queries-with-step are both still supported and not deprecated. The YAML configuration frontend.align_queries_with_step was removed in Mimir 2.14 and was removed from the docs. The documentation you are referencing is not that.

[leehack]

I don't think this PR is valid. The setting you've mentioned, YAML limits.align_queries_with_step and CLI -query-frontend.align-queries-with-step are both still supported and not deprecated. The YAML configuration frontend.align_queries_with_step was removed in Mimir 2.14 and was removed from the docs. The documentation you are referencing is not that.

Ah. You are right. Sorry for the confusion. Closing the PR.