[chromite] Stop running unnecessary repair after successful AU test.

After every run of autoupdate_EndToEndTest the lab does a RESET job to
make sure the DUT is in a good state. This RESET job fails the check:"Last AU
Passed" every single time whether the AU was succesful or not. It then kicks
off a repair job that takes between 15-30minutes!!!!!!!!

The shared provision code flow creates a file /var/tmp/provision_failed at the
start of the test. This file is cleared when we wipe the stateful
partition. The RESET job assumes that all AU tests will clear the
stateful partition. This is not true for autoupdateEndToEndTest.

This CL will stop creation of /var/tmp/provision_failed in the
au_e2etest.

BUG=chromium:788628
TEST=autoupdate_e2etest pass and /var/tmp/provision_failed not there

Change-Id: Ieea0b942312a92ac5849d6f4d8114c8e79652344
Reviewed-on: https://chromium-review.googlesource.com/791911
Commit-Ready: David Haddock <dhaddock@chromium.org>
Tested-by: David Haddock <dhaddock@chromium.org>
Reviewed-by: Xixuan Wu <xixuan@chromium.org>
1 file changed