Vulkan: Update LineLoopTest expectations. One test was working but the suppression was not lifted. The other test had no issue filed. Bug: angleproject:2802 Change-Id: I88cd082b2edeca30ec4a8406809af749bb6ce152 Reviewed-on: https://chromium-review.googlesource.com/1200367 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>