vboot: Remove FTS code

flash_ts driver (from Android) was pulled to support Sonic. But now we
go a different route, this CL is to drop the FTS code.

BUG=chromium:436597
BRANCH=none
TEST=unittest

Change-Id: I86d6273f9f5f642b504ccb6a76e005cda12d0e78
Reviewed-on: https://chromium-review.googlesource.com/231896
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Commit-Queue: Nam Nguyen <namnguyen@chromium.org>
Tested-by: Nam Nguyen <namnguyen@chromium.org>
23 files changed