GitLab

Removes "Linux ChromiumOS Tests (1)"

We're not using it anymore.

BUG=none
TEST=none

Change-Id: I029f967a98acc26ada4fbeebae4739acc9695d2f
Reviewed-on: https://chromium-review.googlesource.com/775178Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Commit-Queue: Scott Violet <sky@chromium.org>
Cr-Commit-Position: refs/heads/master@{#517216}