Remove unecessary SQLite initialization from CommHybrid

Summary:
This differential removes unnecessary and potentially buggy SQLite initialization from CommHybrid. The context is here:
https://linear.app/comm/issue/ENG-7700/reconsider-double-sqlitequeryexecutorinitialize-calls-on-android

Test Plan: Uninstall and reinstall Android app a couple of times. Ensure each time app works correctly.

Reviewers: kamil, ashoat, tomek

Reviewed By: kamil, ashoat

Differential Revision: https://phab.comm.dev/D11702