The issue which reported the need for this workaround only found a
problem on Mac. The failure doesn't happen on other the Linux
OpenGL Intel driver, so it shouldn't be enabled there.

Bug: chromium:1021900, chromium:644669
Change-Id: I65e7462828419aeb9182898f73977ee1c5e72ff3
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1904291Reviewed-by: Kenneth Russell <kbr@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>