Some drive-by clean up (#4452)

pkg/rtc/signalling/signalhandler.go

@@ -32,8 +32,6 @@ type SignalHandlerParams struct {
 }
 
 type signalhandler struct {
-	signalhandlerUnimplemented
-
 	params SignalHandlerParams
 }
 

pkg/rtc/signalling/signalling.go

@@ -28,8 +28,6 @@ type SignallingParams struct {
 }
 
 type signalling struct {
-	signallingUnimplemented
-
 	params SignallingParams
 }
 

pkg/rtc/updatatrackmanager.go

@@ -36,9 +36,6 @@ type UpDataTrackManager struct {
 	lock       sync.RWMutex
 	dataTracks map[uint16]types.DataTrack
 	closed     bool
-
-	onDataTrackPublished   func(types.Participant, types.DataTrack)
-	onDataTrackUnpublished func(types.Participant, types.DataTrack)
 }
 
 func NewUpDataTrackManager(params UpDataTrackManagerParams) *UpDataTrackManager {

pkg/telemetry/prometheus/packets.go

@@ -69,15 +69,6 @@ var (
 	promForwardLatency        prometheus.Gauge
 	promForwardJitter         prometheus.Gauge
 	promForwardLatencyHist    prometheus.Histogram
-
-	promPacketTotalIncomingInitial    prometheus.Counter
-	promPacketTotalIncomingRetransmit prometheus.Counter
-	promPacketTotalOutgoingInitial    prometheus.Counter
-	promPacketTotalOutgoingRetransmit prometheus.Counter
-	promPacketBytesIncomingInitial    prometheus.Counter
-	promPacketBytesIncomingRetransmit prometheus.Counter
-	promPacketBytesOutgoingInitial    prometheus.Counter
-	promPacketBytesOutgoingRetransmit prometheus.Counter
 )
 
 func initPacketStats(nodeID string, nodeType livekit.NodeType) {