Do not prompt for password when deleting thread

Summary: This differential prevents native UI from prompting for password when deleting thread for any account

Test Plan: Test plan is the same as for previous differential in the stack, but now we expect password prompt not to show (so do not have to provide any password)

Reviewers: atul, tomek, ashoat

Reviewed By: tomek, ashoat

Subscribers: ashoat

Differential Revision: https://phab.comm.dev/D6103