Stop Mac Intel experiment 14.6 confirmed to not have the needed fix. Remove Intel testing from mac-exp-test, leaving only AMD testing on Radeon Pro 555X. Bug: chromium:355249262 Change-Id: I520bf2ce0f78c6962ac9e316a3ebf181d073a812 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6428765 Reviewed-by: Brian Sheedy <bsheedy@chromium.org> Commit-Queue: Brian Sheedy <bsheedy@chromium.org> Auto-Submit: Yuly Novikov <ynovikov@chromium.org>