[SQLite] enable DB on web for all users

Summary:
ENG-8075.

Removing canUseDatabaseOnWeb.

Test Plan:

1. Make canUseDatabaseOnWeb return false and use the app (data is returned from the keyserver).
2. Apply this diff
3. Refresh first time: data is returned from the keyserver but ops are processed on DB.
4. Refresh a second time: data is not returned from the keyserver but read from DB.

Reviewers: tomek, inka, marcin

Reviewed By: tomek

Subscribers: ashoat

Differential Revision: https://phab.comm.dev/D13108