verity: drop <linux/dm-bht.h>

It's a locally-provided header (not really in the <linux/...>
namespace); its external users use it under the <verity/...> namespace;
and it causes a QA package notice:

 * QA Notice: Symbolic link /usr/include/verity/linux/dm-bht.h points to /usr/include/dm-bht.h which does not exist.

So let's kill the symlink.

BUG=chromium:878440
TEST=build chromeos-base/verity and chromeos-base/chromeos-installer

Change-Id: Ia7f126e157f0ee063a4eed462f333bfa9015de5b
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1194386
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
3 files changed