chromeos_config: no vmtest for moblab tryjobs

We don't run moblab vmtest on the CQ, and as far as I can tell these
simply do not work (see e.g.
https://luci-milo.appspot.com/buildbot/chromiumos.tryserver/paladin/1760
)

This is an irritating pitfall whenever I try to use a moblab tryjob to
test some autotest changes. Let's get rid of it.

BUG=None
TEST=None

Change-Id: I8db72463b1c33e7c1766a312f0e4ce56f213b25d
Reviewed-on: https://chromium-review.googlesource.com/420966
Commit-Ready: Aviv Keshet <akeshet@chromium.org>
Tested-by: Aviv Keshet <akeshet@chromium.org>
Reviewed-by: Don Garrett <dgarrett@chromium.org>
2 files changed