Fullly disable VVM if carrier VVM app is installed.

Previously it is only disabled when the user has not changed the VVM settings, and the user can still re-enable it.

After this CL, VVM will always be disabled, and the settings will be hidden.

Bug: 72668279
Test: Unit tests
PiperOrigin-RevId: 184063245
Change-Id: I42c12f3fd2f3e397158e08b26875a7e99a766d33
4 files changed