[chromite] Replace au suite with bvt-installer.

Gets the bvt-installer suite in place of the au suite.

Also removes a workaround for an old bug now that the AUTestStage is
removed from the builder.


Change-Id: I47b5fc999039a9aaf50f94191eb510dc2f54d365
Reviewed-on: https://chromium-review.googlesource.com/675600
Commit-Ready: David Haddock <dhaddock@chromium.org>
Tested-by: David Haddock <dhaddock@chromium.org>
Reviewed-by: Richard Barnette <jrbarnette@google.com>
Reviewed-on: https://chromium-review.googlesource.com/713663
Reviewed-by: David Haddock <dhaddock@chromium.org>
3 files changed