Re-enable 2DArray Copy Texture Tests Re-enables 3 tests that were previously failing on Nvidia hardware on D3D11. The tests seem stable after a trybot driver update. Bug: angleproject:2896 Change-Id: I17d76a5a67fd57ba7257ef22aa5a1371bf5ed55e Reviewed-on: https://chromium-review.googlesource.com/c/1308735 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>