* Removes a duplicate breaking change/deprecation for `indices.query.bool.max_clause_count`.
* Relocates the `index.merge.policy.max_merge_at_once_explicit` deprecation content to a breaking changes section.
* Adds remediation steps for removing the settings. While they no longer have an effect, specifying these settings will issue a deprecation warning.
Relates to https://github.com/elastic/elasticsearch/pull/83412