Simplify Readiness Review to single item

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: aclark4life

.github/INCIDENT_RESPONSE.md

@@ -36,7 +36,6 @@ Contact details are known to all team members.
 At each quarterly release, maintainers should:
 
 1. Re-read this document and update any stale content (version table, contacts, tooling).
-2. Review Dependabot and CodeQL alert settings are enabled on the repository.
 
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