Revert "Turn off double updates in VM tests."

These tests were disabled until we fixed the postinst firmware problem...
it's now fixed.

This reverts commit 360bdea5240649b5c3d858bfcc0b53753d0cf321.

BUG=None
TEST=trybot

Change-Id: Id17f9f343ab76fb1a1ceb03f2e4761310f5eadac
Reviewed-on: https://gerrit.chromium.org/gerrit/21577
Tested-by: Don Garrett <dgarrett@chromium.org>
Reviewed-by: David James <davidjames@chromium.org>
Commit-Ready: Don Garrett <dgarrett@chromium.org>
1 file changed