test_planner: Only consider builds with testable artifacts

Also, drop a gitiles_commit check that doesn't match reality about how
the gitiles_commit is supposed to be populated.

BUG=chromium:971753
TEST=local runs, unit tests

Change-Id: Ieac3ab10b3d5156b9305939b31bdc1c67cc8fac6
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/test_planner/+/1648261
Reviewed-by: Dhanya Ganesh <dhanyaganesh@chromium.org>
Commit-Queue: Sean Abraham <seanabraham@chromium.org>
Tested-by: Sean Abraham <seanabraham@chromium.org>
3 files changed
tree: 38f62dd87d31872cae1bbc2ebb0e5e6408879fb5
  1. .gitignore
  2. LICENSE
  3. OWNERS
  4. cipd.yaml
  5. deploy_cipd.json
  6. deploy_cipd.sh
  7. src/