Change expectations for RTCRtpSender-encode-same-track-twice WPT test

The crash is now fixed.

Bug: webrtc:11485
Change-Id: I56b09aca9fb547bc49b24ae1f634b9a4a878d07f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2449990
Commit-Queue: Ilya Nikolaevskiy <ilnik@chromium.org>
Auto-Submit: Ilya Nikolaevskiy <ilnik@chromium.org>
Reviewed-by: Henrik Boström <hbos@chromium.org>
Cr-Commit-Position: refs/heads/master@{#813751}

third_party/blink/web_tests/TestExpectations

@@ -2485,9 +2485,6 @@ crbug.com/27659 external/wpt/css/css-ruby/ruby-whitespace-002.html [ Failure ]
 # WebRTC: Perfect Negotiation times out in Plan B. This is expected.
 crbug.com/980872 virtual/webrtc-wpt-plan-b/external/wpt/webrtc/RTCPeerConnection-perfect-negotiation.https.html [ Timeout ]
 
-# This is a repro case for the referenced crash. Once fixed, we should expect to pass.
-crbug.com/webrtc/11485 external/wpt/webrtc/RTCRtpSender-encode-same-track-twice.https.html [ Pass Crash ]
-
 crbug.com/1074547 external/wpt/css/css-transitions/transitioncancel-002.html [ Timeout ]
 
 crbug.com/1078474 external/wpt/css/css-pseudo/cascade-highlight-001.html [ Failure ]