Revert "Added transparency-metadata display."

Revert "Added new transparency metadata enum."

Revert submission 19943929-mba_ui

Reason for revert: Feature cancelled due to product direction change.
Reverted Changes:
I7b3e296c3:Added transparency metadata feature flag.
Ia4b2f294b:Added new transparency metadata enum.
If7822100a:Added transparency-metadata display.

Change-Id: If50179b4a485587dcf49a2c9e2ae18a69b173794