Turn off background archiving of the build for now.

For now, the archive_build step needs to run in the same process as the
rest of the build so it can communicate test results. Once this is
cleaned up, we can

BUG=chromium-os:12220
TBR=Needed so sheriffs can have test results uploaded again.
TEST=Run sample buildbot run.

Change-Id: Ie066a4ebf37bcc55d3fa577ad1b79c1bc66e1b02
Reviewed-on: http://gerrit.chromium.org/gerrit/4236
Reviewed-by: David James <davidjames@chromium.org>
Tested-by: David James <davidjames@chromium.org>
1 file changed