Base port already keeps an AlwaysValidPointer to field_trials, so TURN port's duplicate, private copy is redundant. Bug: webrtc:14319, webrtc:14131 Change-Id: I94ee78ca5140c0b67826fbb94c35e28f30add943 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/270627 Reviewed-by: Jonas Oreland <jonaso@google.com> Commit-Queue: Sameer Vijaykar <samvi@google.com> Reviewed-by: Jonas Oreland <jonaso@webrtc.org> Cr-Commit-Position: refs/heads/main@{#37735}