Revert "Disable preview on volume change" 

Fixes: 118534516
This reverts commit d7e9d35a44baa87d930c898fdb88e9000d7c2d54.

Reason for revert: Users can adjust volume from volume slice without preview sound, so re-enable preview sound in Settings > Sound 

Change-Id: I009d4a915a900e74bdcf14fb6dabad2e4a497a82
1 file changed