This reverts commit c308bdfa45.
Reason for revert: The msan bot has been consistently failing since this commit. See eg https://ci.chromium.org/p/webrtc/builders/luci.webrtc.ci/Linux%20MSan/16989
Original change's description:
> Add transaction id to CandidatePairEvents.
>
> The transaction id is a randomly generated number used to link stun
> requests and responses (https://tools.ietf.org/html/rfc5389#section-6).
> Logging this will help us debug ICE network issues.
>
> Bug: webrtc:9972
> Change-Id: I93167cb119aad99156e8727b6e4eeeff5198f924
> Reviewed-on: https://webrtc-review.googlesource.com/c/109720
> Commit-Queue: Zach Stein <zstein@webrtc.org>
> Reviewed-by: Qingsi Wang <qingsi@webrtc.org>
> Reviewed-by: Elad Alon <eladalon@webrtc.org>
> Reviewed-by: Björn Terelius <terelius@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#25848}
TBR=eladalon@webrtc.org,terelius@webrtc.org,zstein@webrtc.org,qingsi@webrtc.org,jeroendb@webrtc.org
Change-Id: Ib3b0a845f2300f4fcba2061650e17522735f08b3
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: webrtc:9972
Reviewed-on: https://webrtc-review.googlesource.com/c/112581
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25852}
286ee0123e