Stop using browser_tests WindowServer killer filter on mac.

Should increase the rate of bot death if the underlying issue hasn't
been fixed.

Bug: 828031
Change-Id: I046ab67d4fd43cfb43236b570039d145ccc86c08
Reviewed-on: https://chromium-review.googlesource.com/c/1273617
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Commit-Queue: John Budorick <jbudorick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#598392}
2 files changed