Remove svg/animations/animate-local-url.html from TestExpectations

No flakes observed after https://codereview.chromium.org/2907193002.

TBR=schenney@chromium.org
BUG=727257

Review-Url: https://codereview.chromium.org/2917623002
Cr-Commit-Position: refs/heads/master@{#475869}

third_party/WebKit/LayoutTests/TestExpectations

@@ -3000,7 +3000,6 @@ crbug.com/725585 payments/payment-request-interface.html [ Failure Pass ]
 # Sheriff failures 2017-05-29
 crbug.com/727014 [ Linux ] external/wpt/IndexedDB/large-nested-cloning.html [ Pass Timeout ]
 crbug.com/727252 [ Win7 ] external/wpt/media-source/mediasource-endofstream.html [ Pass Timeout ]
-crbug.com/727257 [ Mac10.11 ] svg/animations/animate-local-url.html [ Pass Failure ]
 
 # Sheriff failures 2017-05-30
 # Failing on try (with patch) and Linux FYI too frequently.