Reland "Detect codec collisions between audio and video sections"

This reverts commit e5ca0edb63b34ac3ecc24e5a5a460d0dc0f92ebb.

Reason for revert: Rewrote test to not fail

Original change's description:
> Revert "Detect codec collisions between audio and video sections"
>
> This reverts commit a8aae89f379e36cd418bf4ef194115d2ca231a1c.
>
> Reason for revert: The test is failing on downstream bots:
>
> pc/test/integration_test_helpers.h:900
> Value of: SetRemoteDescription(std::move(desc))
>   Actual: false
> Expected: true
>
> Original change's description:
> > Detect codec collisions between audio and video sections
> >
> > This bug was reproduced as a side effect of fixing
> > issues.chromium.org/395077842
> >
> > Bug: webrtc:42224689
> > Change-Id: I41c2bb02a6ec9fb9e9c057d64255dd7896da4f4d
> > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/377460
> > Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
> > Commit-Queue: Harald Alvestrand <hta@webrtc.org>
> > Auto-Submit: Harald Alvestrand <hta@webrtc.org>
> > Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
> > Cr-Commit-Position: refs/heads/main@{#47664}
>
> Bug: webrtc:42224689
> Change-Id: Iefc1872c330a03ea2b6e9ef12aee1fcdfeceba9e
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/471260
> Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
> Commit-Queue: Harald Alvestrand <hta@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#47670}

Bug: webrtc:42224689
Change-Id: I1eeba1279595b808c32b82fece89f30efaadc9c7
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/470862
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Auto-Submit: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#47687}