in Swift/KVSiOSApp/WebRTCClient.swift [80:91]
func shutdown() {
peerConnection.close()
if let stream = peerConnection.localStreams.first {
localAudioTrack = nil
localVideoTrack = nil
remoteVideoTrack = nil
peerConnection.remove(stream)
}
peerConnectionFoundMap.removeAll();
pendingIceCandidatesMap.removeAll();
}