Revert "Fix RTCPeerConnection-track-stats.https.html expectations."

This reverts commit bae1ec12e52223b5cb357bdc12c134ab6259406a.

Reason for revert: Causing failures on Linux Tests bot: https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Linux%20Tests/74581

Original change's description:
> Fix RTCPeerConnection-track-stats.https.html expectations.
> 
> The tests started failing in an earlier WPT import, see
> https://crbug.com/832501.
> 
> TBR=hta@chromium.org
> 
> Bug: 832501
> Change-Id: If53c927e03dabb60158c61befc5a29d1c45bba1f
> Reviewed-on: https://chromium-review.googlesource.com/c/1394307
> Reviewed-by: Henrik Boström <hbos@chromium.org>
> Commit-Queue: Henrik Boström <hbos@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#619631}

TBR=hbos@chromium.org

Change-Id: I6b02e4b99e003b1ee1e686eea1bf3b36aadb4b39
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 832501
Reviewed-on: https://chromium-review.googlesource.com/c/1394705
Reviewed-by: Tommy Steimel <steimel@chromium.org>
Commit-Queue: Tommy Steimel <steimel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#619672}
2 files changed