infra: Remove linux-tsan-test from CQ This bot is too flaky. Bug: chromium:1275223 Change-Id: I29a2d30f6d3aa58ee1380eace65df3d78df89ae0 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3696829 Commit-Queue: Jamie Madill <jmadill@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>