Add platform specific expected files for select-event.html test

Bug: 1161590
Change-Id: I17f1fadfba815efa42bff7afe7abc3f27960e533
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2605394Reviewed-by: Joey Arhar <jarhar@chromium.org>
Commit-Queue: Yu Han <yuzhehan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#839496}

third_party/blink/web_tests/TestExpectations

@@ -5917,7 +5917,6 @@ crbug.com/626703 [ Mac ] external/wpt/mediacapture-image/MediaStreamTrack-getCon
 # Wpt importer sheriff 2020-12-23
 crbug.com/626703 external/wpt/cookies/samesite/multiple-samesite-attributes.https.html?legacy-samesite [ Failure ]
 crbug.com/626703 virtual/legacy-samesite/external/wpt/cookies/samesite/multiple-samesite-attributes.https.html [ Failure ]
-crbug.com/626703 external/wpt/html/semantics/forms/textfieldselection/select-event.html [ Failure Timeout ]
 
 # Sheriff 2020-12-14
 crbug.com/1046784 http/tests/devtools/console/console-context-selector.js [ Pass Timeout ]