Re-enable skipped web test

This should be fixed in v8 via https://crrev.com/c/1930615.

R=ahaas@chromium.org

Bug: chromium:1025184, chromium:1027131
Change-Id: Ic9be384a777910b6da59f1a9252be88638d6c8f4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1930557Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#718283}

third_party/blink/web_tests/TestExpectations

@@ -5794,9 +5794,6 @@ crbug.com/1014950 [ Mac ] http/tests/devtools/tracing/timeline-js/timeline-js-li
 crbug.com/1014950 [ Mac ] virtual/threaded/http/tests/devtools/tracing/timeline-js/timeline-js-line-level-profile-no-url-end-to-end.js [ Pass Timeout ]
 crbug.com/1015187 [ Linux Mac ] virtual/cross-origin-isolation/external/wpt/html/cross-origin-embedder-policy/none.https.html [ Pass Failure ]
 
-# Temporarily disabled until we find the root cause in v8
-crbug.com/1027131 fast/encoding/resource-default-encoding.html [ Pass Failure ]
-
 # Sheriff 2019-10-18
 crbug.com/1015859 [ Linux ] http/tests/devtools/a11y-axe-core/performance/landing-page-a11y-test.js [ Pass Failure ]
 crbug.com/1015975 media/video-currentTime.html [ Pass Failure ]