[LayoutNG] Update test expectations for fast/multicol

One more test passing.

TBR=atotic@chromium.org

Cq-Include-Trybots: master.tryserver.chromium.linux:linux_layout_tests_layout_ng
Change-Id: I19f5b593a0275b49b8af58080a6a2204d7242d8f
Reviewed-on: https://chromium-review.googlesource.com/919067
Commit-Queue: Morten Stenshorne <mstensho@chromium.org>
Reviewed-by: Morten Stenshorne <mstensho@chromium.org>
Cr-Commit-Position: refs/heads/master@{#536722}

third_party/WebKit/LayoutTests/FlagExpectations/enable-blink-features=LayoutNG

@@ -3915,7 +3915,6 @@ crbug.com/591099 fast/multicol/float-with-margin-moved-by-child-line-and-unbreak
 crbug.com/591099 fast/multicol/float-with-margin-moved-by-child-line.html [ Failure ]
 crbug.com/591099 fast/multicol/float-with-margin-moved-unbreakable.html [ Failure ]
 crbug.com/591099 fast/multicol/flowthread-with-floats-destroyed-crash.html [ Crash Pass ]
-crbug.com/714962 fast/multicol/focus-outline.html [ Crash ]
 crbug.com/591099 fast/multicol/forced-break-after-block-with-spanner.html [ Crash ]
 crbug.com/591099 fast/multicol/forced-break-after-empty-block-after-spanner.html [ Crash ]
 crbug.com/591099 fast/multicol/forced-break-after-last-block-before-spanner.html [ Crash ]