chromeos_config: temporarily disable jetstream tests

BUG=chrome-os-partner:47563
TEST=None

Change-Id: Ic687b97d07f078fca379b094d53cff88a9a50779
Reviewed-on: https://chromium-review.googlesource.com/312098
Trybot-Ready: Aviv Keshet <akeshet@chromium.org>
Tested-by: Aviv Keshet <akeshet@chromium.org>
Reviewed-by: David James <davidjames@chromium.org>
2 files changed