Revert "Build CarbonAbout"

Not needed as the application build via CFibers

This reverts commit 0e1db6db60b97b1d4361368742d50d98e3d06bd9.

Change-Id: Ie003543538e8f012526f4b0885cffccbff138d6d
Merge "Revert "Build CarbonAbout"" into kk