Revert "Camera: Add new capability flags as system features as well"

This reverts commit 6aee1d2ba52cf7f44c9355f279844b8a937903da.
But leaves in some of the improved documentation.

Bug: 18281970
Bug: 18573576
Change-Id: I320f2229456ac039bc8f3cd8bc8b4ea6cf0e80eb
3 files changed