Delete flaky expectation for external/wpt/cookies/path/match.html

The test does not seem to be flaky recently.

TBR=smcgruer

Fixed: 986477
Change-Id: Ic09e0466315be8d39d7acfe406be5e6bfd29525a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2113511Reviewed-by: Robert Ma <robertma@chromium.org>
Commit-Queue: Robert Ma <robertma@chromium.org>
Cr-Commit-Position: refs/heads/master@{#752213}

third_party/blink/web_tests/TestExpectations

@@ -5850,9 +5850,6 @@ crbug.com/985811 [ Win ] http/tests/devtools/elements/edit/edit-dom-actions-2.js
 crbug.com/985869 [ Linux ] http/tests/security/contentSecurityPolicy/object-src-no-url-allowed.html [ Pass Failure ]
 crbug.com/985869 [ Win7 ] http/tests/security/contentSecurityPolicy/object-src-no-url-allowed.html [ Pass Failure ]
 
-# ecosystem-infra sheriff 2019-07-22
-crbug.com/986477 [ Win ] external/wpt/cookies/path/match.html [ Pass Timeout ]
-
 crbug.com/987269 [ Linux ] virtual/audio-service/http/tests/media/autoplay/document-user-activation-cross-origin-feature-policy-disabled.html [ Pass Failure ]
 crbug.com/987269 [ Linux ] virtual/audio-service/http/tests/media/autoplay/document-user-activation-cross-origin-feature-policy-header.html [ Pass Failure ]
 # Sheriff 2019-07-24