[lib] add operation for removing all reports on login/logout

Summary:
In this case this change is very simple - so generating only db operations without calling processReportStoreOperations

Depends on D7921

Test Plan:

1. Logout/login user (create some reports previously)
2. tests

Reviewers: tomek, michal

Reviewed By: tomek

Subscribers: ashoat, atul

Differential Revision: https://phab.comm.dev/D7922