This change removes the following after internal cleanup: - IceRecheckEvent::Type enum, replaced with IceSwitchReason - IceControllerEvent alias for IceRecheckEvent Bug: webrtc:14125, webrtc:14131 Change-Id: I07bfeb7fa8a9c4d4a3f940213befd6418dfd6644 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/264145 Reviewed-by: Jonas Oreland <jonaso@webrtc.org> Commit-Queue: Sameer Vijaykar <samvi@google.com> Cr-Commit-Position: refs/heads/main@{#37118}