[LayoutNG] Remove failure expectations for passing multicol tests.

TBR=cbiesinger@chromium.org, kojii@chromium.org

Bug: 591099, 635619, 797591, 864156
Change-Id: Ibb3e27415a4b1e32055c9f2d156d3f36ca676085
Reviewed-on: https://chromium-review.googlesource.com/1194368
Reviewed-by: Morten Stenshorne <mstensho@chromium.org>
Commit-Queue: Morten Stenshorne <mstensho@chromium.org>
Cr-Commit-Position: refs/heads/master@{#587297}
1 file changed