Run traffic_annotation_auditor_unittests on more bots

- Add mac to TrafficAnnotationExporter's all_supported_platforms_
  to fix a DCHECK when running the tests on mac
- Move the test binary to non_android_chromium_gtests to run it
  on all desktop bots
- Remove exceptions to not run the test on swarming on one bot (it
  already runs fine on swarming on other bots) and to not run it on
  two main waterfall dbg bots
- linux_specific_chromium_gtests is now empty, so remove it

Bug: 843511
Change-Id: Ic350a65039ce4111c868b64f416458b35b6bcfbb
Reviewed-on: https://chromium-review.googlesource.com/1138253
Reviewed-by: Ramin Halavati <rhalavati@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#575317}
10 files changed