Remove changelog entry

Signed-off-by: Michael Froh <froh@amazon.com>

Author: msfroh

CHANGELOG.md

@@ -107,7 +107,6 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Add a counter to node stat api to track shard going from idle to non-idle ([#12768](https://github.com/opensearch-project/OpenSearch/pull/12768))
 - Allow setting KEYSTORE_PASSWORD through env variable ([#12865](https://github.com/opensearch-project/OpenSearch/pull/12865))
 - [Concurrent Segment Search] Perform buildAggregation concurrently and support Composite Aggregations ([#12697](https://github.com/opensearch-project/OpenSearch/pull/12697))
-- Fix version checks for search idle metric ([#12972](https://github.com/opensearch-project/OpenSearch/pull/12972))
 - [Concurrent Segment Search] Disable concurrent segment search for system indices and throttled requests ([#12954](https://github.com/opensearch-project/OpenSearch/pull/12954))
 
 ### Dependencies