Revert "Make CameraDataAdapter background new data loading and post to listener"

Reverting out of concerns on thread safety, need to more carefully assess the change. Synchronizing may just reintroduce deadlock for affected user.

This reverts commit cc93255f596b47d1a860461dd0d4be697422964f.

Change-Id: I8b003f978d680942d380cc3563bccd055ab28fe9
2 files changed