[native] stop persisting reports

Summary:
queuedReports are now stored in SQLite, but still we want to save enabledReports.

Depends on D7938

Test Plan:
Check is persisting works for enabledReports and queuedReports are not persisted.

Also, with this diff I tested entire stack end-to-end.

Reviewers: tomek, michal

Reviewed By: tomek

Subscribers: ashoat, atul

Differential Revision: https://phab.comm.dev/D7939