This avoids having duplicate camera entries presented to the user when PipeWire camera is being used. Bug: webrtc:346350844 Change-Id: I423db7fe0654cc1b1c91ee5264c6ba5dc4e24100 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/354320 Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org> Reviewed-by: Andreas Pehrson <apehrson@mozilla.com> Commit-Queue: Jan Grulich <grulja@gmail.com> Cr-Commit-Position: refs/heads/main@{#42462}