[webrtc-pc] RTCIceTransport.component is at the wrong abstraction layer

alvestrand has just created a new issue for https://github.com/w3c/webrtc-pc:

== RTCIceTransport.component is at the wrong abstraction layer ==
The "component" of an RTCIceTransport returns either "rtp" or "rtcp", depending on what the ICE transport is used for.

This is a layering mistake; if RTCIceTransport is to be a reusable component of other structures (like QUIC or data-channel-only sessions), this needs to be on the containing object, not on the contained object.
The "component" is also present on the RTCIceCandidate, but there it serves to route a candidate to the correct transport when presented to the peerconnection; the peerconnection already knows which transport is the RTP and which is the RTCP if both are used.

I suggest deleting this component from the interface.

Please view or discuss this issue at https://github.com/w3c/webrtc-pc/issues/1916 using your GitHub account