Revert "Sheriff: Mark animations/animation-shorthand-overriding.html etc with Crash on Android"

This reverts commit 4117b35a.

Reason for revert: The issue which was leading to the original crashes here has been addressed.

Original change's description:
> Sheriff: Mark animations/animation-shorthand-overriding.html etc with Crash on Android
> 
> Bug: 874737
> Change-Id: I11c23cf99defa75625cd14284b010e28bb297c72
> Tbr: nhiroki@chromium.org
> Notry: true
> Reviewed-on: https://chromium-review.googlesource.com/1177219
> Reviewed-by: Hiroki Nakagawa <nhiroki@chromium.org>
> Commit-Queue: Hiroki Nakagawa <nhiroki@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#583565}

TBR=nhiroki@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: 874737
Change-Id: I44fa371cdc4d2ee1b1d513484643372774c6943f
Reviewed-on: https://chromium-review.googlesource.com/1188495
Commit-Queue: Eric Karl <ericrk@chromium.org>
Reviewed-by: Eric Karl <ericrk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#586100}

third_party/WebKit/LayoutTests/TestExpectations

@@ -4978,13 +4978,6 @@ crbug.com/874733 [ Android ] accessibility/aria-labelledby-on-input.html [ Crash
 crbug.com/874733 [ Android ] accessibility/aria-link-supports-press.html [ Crash ]
 crbug.com/874733 [ Android ] accessibility/insert-adjacent-html-causes-crash.xhtml [ Crash ]
 
-crbug.com/874737 [ Android ] animations/animation-shorthand-overriding.html [ Crash ]
-crbug.com/874737 [ Android ] animations/interpolation/border-image-slice-interpolation-stability.html [ Crash ]
-crbug.com/874737 [ Android ] animations/responsive/interpolation/offset-rotate-responsive.html [ Crash ]
-crbug.com/874737 [ Android ] animations/stability/empty-keyframes.html [ Crash ]
-crbug.com/874737 [ Android ] animations/svg-attribute-composition/svg-bias-composition.html [ Crash ]
-crbug.com/874737 [ Android ] animations/svg-attribute-interpolation/svg-numOctaves-interpolation.html [ Crash ]
-
 # Sheriff 2018-08-17
 crbug.com/869726 [ Mac ] virtual/scroll_customization/fast/events/touch/touch-latched-scroll-node-removed.html [ Pass Failure ]
 crbug.com/875170 animations/interpolation/svg-stroke-dasharray-interpolation.html [ Timeout Pass ]