[fuchsia] Remove use_cfv1 from uses of test() GN template The default is now to not include CFv1 manifests in test packages, so it is no longer necessary for tests to individually opt-out of including them. Bug: chromium:1256503 Change-Id: Ib6c5425c584cadfccefef530b00f651a2878ea3b Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3898670 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Auto-Submit: Greg Thompson <grt@chromium.org>