chore(backend): remove unused createDataAccessClaimRecord

The factory had no callers; DataAccessClaimDataSource constructs
DataAccessClaim directly. The DataAccessClaimRecord interface is still
used and stays. Drops the now-unused DataAccessClaim import.

Author: shivoomiess

apps/backend/src/datasources/postgres/records.ts

@@ -9,7 +9,6 @@ import {
 } from '../../models/ConditionEvaluator';
 import { CoProposerClaim } from '../../models/CoProposerClaim';
 import { Country } from '../../models/Country';
-import { DataAccessClaim } from '../../models/DataAccessClaim';
 import { EmailTemplate } from '../../models/EmailTemplate';
 import { Experiment, ExperimentStatus } from '../../models/Experiment';
 import { ExperimentSafetyPdfTemplate } from '../../models/ExperimentSafetyPdfTemplate';
@@ -1470,9 +1469,6 @@ export interface DataAccessClaimRecord {
   readonly proposal_pk: number;
 }
 
-export const createDataAccessClaimRecord = (invite: DataAccessClaimRecord) =>
-  new DataAccessClaim(invite.invite_id, invite.proposal_pk);
-
 export interface TagRecord {
   readonly tag_id: number;
   readonly name: string;