Lift warning from trace tests. Noticed when working on a related feature. Bug: angleproject:3630 Change-Id: I82638d37ee6d27dc824d5782c96387f0d000d585 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2305040 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>