prevent webrtc-adapter to override RTCPeerConnection.prototype.addStream like addTrack
prevent webrtc-adapter to override RTCPeerConnection.prototype.addStream like addTrack

hit0907/cordova-plugin-iosrtc,eface2face/cordova-plugin-iosrtc,hit0907/cordova-plugin-iosrtc,hit0907/cordova-plugin-iosrtc,eface2face/cordova-plugin-iosrtc,eface2face/cordova-plugin-iosrtc