transport: Drop some dead code
transport: Drop some dead code

pererikb/openwebrtc,EricssonResearch/openwebrtc,philn/openwebrtc,multipath-rtp/openwebrtc,pererikb/openwebrtc,alessandrod/openwebrtc,alessandrod/openwebrtc,adozenlines/openwebrtc,alessandrod/openwebrtc,pererikb/openwebrtc,alessandrod/openwebrtc,philn/openwebrtc,stefhak/openwebrtc,EricssonResearch/openwebrtc,EricssonResearch/openwebrtc,ford-prefect/openwebrtc,philn/openwebrtc,philn/openwebrtc,shoreflyer/openwebrtc,stefhak/openwebrtc,danielwegener/openwebrtc,alessandrod/openwebrtc,stefhak/openwebrtc,EricssonResearch/openwebrtc,multipath-rtp/openwebrtc,adozenlines/openwebrtc,ford-prefect/openwebrtc,adozenlines/openwebrtc,philn/openwebrtc,ford-prefect/openwebrtc,stefhak/openwebrtc,multipath-rtp/openwebrtc,EricssonResearch/openwebrtc,adozenlines/openwebrtc,multipath-rtp/openwebrtc,shoreflyer/openwebrtc,stefhak/openwebrtc,shoreflyer/openwebrtc,shoreflyer/openwebrtc,adozenlines/openwebrtc,adozenlines/openwebrtc,danielwegener/openwebrtc,pererikb/openwebrtc,ford-prefect/openwebrtc,pererikb/openwebrtc,ford-prefect/openwebrtc,danielwegener/openwebrtc,pererikb/openwebrtc,multipath-rtp/openwebrtc,multipath-rtp/openwebrtc,pererikb/openwebrtc,shoreflyer/openwebrtc,multipath-rtp/openwebrtc,danielwegener/openwebrtc,stefhak/openwebrtc,EricssonResearch/openwebrtc,ford-prefect/openwebrtc,danielwegener/openwebrtc,alessandrod/openwebrtc,philn/openwebrtc,danielwegener/openwebrtc,shoreflyer/openwebrtc,EricssonResearch/openwebrtc,shoreflyer/openwebrtc,philn/openwebrtc