Revert "[ResamplerHelper] Avoid resampling muted audio frames."

This reverts commit cad50b5a1445a344dffaae0f57d5fbde95910b98.

Reason for revert: This might introduce unwanted side effects and also does not seem to be worth it for the most common case.

Bug: none
Original change's description:
> [ResamplerHelper] Avoid resampling muted audio frames.
>
> Bug: none
> Change-Id: I1787b5ea6b9b33a0d37992287a4adc287fbb2ce5
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/392662
> Commit-Queue: Tomas Gunnarsson <tommi@webrtc.org>
> Reviewed-by: Jakob Ivarsson‎ <jakobi@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#44729}

Bug: none
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Change-Id: I8ff3fc77aab4c25f5e76b23946b8a3c2f2edc47f
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/393201
Commit-Queue: Jakob Ivarsson‎ <jakobi@webrtc.org>
Auto-Submit: Tomas Gunnarsson <tommi@webrtc.org>
Reviewed-by: Jakob Ivarsson‎ <jakobi@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#44738}