infra: Don't run trace tests in perf smoke tests. These test were already being run more safely in the gold tests step. Bug: angleproject:5977 Change-Id: I4fb1062926fcda19384835723555d0fab0b42aae Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2939469 Reviewed-by: Yuly Novikov <ynovikov@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>