Harald Alvestrand 09e0086d26 Remove ImplForTesting function from MediaChannel
It is not used any more.

Bug: webrtc:13931
Change-Id: I266de41abe239907c6d65f4b182a8dc3aacaba3d
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/308022
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#40234}
2023-06-06 16:30:16 +00:00
..
2021-10-26 10:36:44 +00:00
2019-11-18 16:11:27 +00:00
2021-05-10 22:57:52 +00:00