Bug 1383998 - Enable dom/animation/test/css-transitions/test_element-get-animations.html. r=heycam

MozReview-Commit-ID: Dbr3XpkZk20

--HG--
extra : rebase_source : 8f630e1f0d06c2dddeadcc6ab340989e93914595

dom/animation/test/mochitest.ini

@@ -95,7 +95,6 @@ skip-if = stylo
 [css-transitions/test_document-get-animations.html]
 [css-transitions/test_effect-target.html]
 [css-transitions/test_element-get-animations.html]
-skip-if = stylo
 [css-transitions/test_event-dispatch.html]
 [css-transitions/test_keyframeeffect-getkeyframes.html]
 [css-transitions/test_pseudoElement-get-animations.html]