Remove unecessary JSI queries

Summary: This differential removes ol unecessary JSI queries to get all drafts, threads and messages.

Test Plan: Removed queries are not used anymore in the project, so the sufficient test plan is to build the app.

Reviewers: tomek, atul, jon

Reviewed By: tomek

Subscribers: ashoat

Differential Revision: https://phab.comm.dev/D5776