Clean up unused db functions

[exalate-issue-sync]

Dan identified some unused db functions that we can remove from our db instances on dev, stage, test, and prod. Remove them.

• FUNCTION public.calculate_calendar_ytd_per_election_office
• FUNCTION public.calculate_entity_aggregates
• FUNCTION public.calculate_is_loan
• FUNCTION public.calculate_itemization
• FUNCTION public.calculate_loan_date
• FUNCTION public.calculate_loan_payment_to_date
• FUNCTION public.calculate_original_loan_id
• FUNCTION public.get_children_and_grandchildren_transaction_ids
• FUNCTION public.get_parent_grandparent_transaction_ids
• FUNCTION public.get_temp_tablename
• FUNCTION public.handle_parent_itemization
• FUNCTION public.needs_itemized_set
• FUNCTION public.process_itemization
• FUNCTION public.set_itemization_for_ids

We can do this before removing the unamend triggers and avoid rework by ensuring that we remove the unamend functions in the migrations that remove the triggers

QA Notes

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DEV Notes

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Design

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See full ticket and images here: FECFILE-2957

Pull Request: #1946

[exalate-issue-sync]

Sasha Dresden commented: Database functions after dropping those:

!image-20260326-131002.png|width=343,alt="image-20260326-131002.png"!

[exalate-issue-sync]

Shelly Wise commented: QA review verified per DEV the unused DB functions were removed (see screenshot)

Moved to Stage Ready.