fix doc and changelog

CHANGELOG.md

@@ -457,7 +457,6 @@ to include only the most relevant.
 * [5544](https://github.com/grafana/loki/pull/5544) **ssncferreira**: Update vectorAggEvaluator to fail for expressions without grouping
 * [5543](https://github.com/grafana/loki/pull/5543) **cyriltovena**: update loki go version to 1.17.8
 * [5450](https://github.com/grafana/loki/pull/5450) **BenoitKnecht**: pkg/ruler/base: Add external_labels option
-* [5484](https://github.com/grafana/loki/pull/5450) **sandeepsukhani**: Add support for per user index query readiness with limits overrides
 * [5522](https://github.com/grafana/loki/pull/5522) **liguozhong**: chunk backend: Integrate Alibaba Cloud oss
 * [5484](https://github.com/grafana/loki/pull/5484) **sandeepsukhani**: Add support for per user index query readiness with limits overrides
 * [5719](https://github.com/grafana/loki/pull/5719) **kovaxur**: Loki can use both basic-auth and tenant-id