Parameterization was used to inject field trial for using the active ICE controller. The field trial is not used any more after fully launching the refactor. This simplifies as well as reduces the number of tests. Bug: webrtc:14367 Change-Id: I48dfb2fc5cc4f1278f203a0b2ebb2131cae64690 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/294320 Reviewed-by: Stefan Holmer <stefan@webrtc.org> Commit-Queue: Sameer Vijaykar <samvi@google.com> Cr-Commit-Position: refs/heads/main@{#39402}