Remove totals/by_party and totals/by_office (5026 follow-up)

[cnlucas]

What we’re after

After @fec-jli's work on the candidate/totals/aggregates endpoint here we should be able to remove the totals/by_office and totals/by_party endpoints. We need to conduct extensive testing to ensure the new endpoint will provide the same numbers as the old endpoint, ensure that our users are properly notified according to our policy, and then make the appropriate CMS changes so that it's pulling from the better and more flexible candidate/totals endpoint instead of the old endpoints. Then, we can remove the old endpoints.

Related ticket(s)

(Include the tickets that either came before, after, or are happening in tandem with this new ticket)

• Treemap and all elections totals table: Discuss new endpoints for /by_state and /by_state/by_district #5026

Action item(s)

(These are the smaller tasks that should happen in order to complete this work)

• Test new vs old by_party and by_office totals
• Fix any issues found in above testing
• Ensure that there's no shared logic with the old endpoints
• Switch over CMS
• Notify Users
• Give appropriate time for users/deprecate old endpoints
• Deprecation notice added to endpoints add deprecation notice for by_office and by_office/by_party endpoints #5425
• Remove old endpoints and remove deprecation notices

[cnlucas]

DEPRECATION NOTICE sent 4/24/2023 to all users of the endpoint in the last 120 days as is policy. Another notice will be sent on May 23, 2023 and the removal can be done after that date.

[cnlucas]

Re-opening to remember to send another notice and remove the endpoints