Remove unused outdated content

[dawnpm]

PR Checklist

• [x] Test Federalist Preview link for your branch for functionality - make sure all links and buttons work, javascript works as intended, and updates display as expected - also crawled with scrutiny. Removing these old unused components had no impact.
• [x] NA - no text changes. Conduct a HemingwayApp review of the content for plain language. Request plain language review in #helpwanted if needed before merging this PR
• [x] NA - no functional changes. Conduct a Lighthouse Audit via Chrome Developer Tools. Identify any issues that must be addressed before merging, and fix
• [x] Ensure no non-public information is published in the commit messages

[amanifarooque]

LGTM, approved. I pushed an update to fix the localizations instructions and add the October release notes. Merging.