Cleanup - audit

peer/on_hub.go

@@ -95,14 +95,6 @@ func (a *App) switchActiveRelay() {
 	a.relay = best
 }
 
-func preferredEndpoint(v4, v6 netip.AddrPort) netip.AddrPort {
-	// We always prefer v4 since all peers can connect to IPv4 addresses.
-	if v4.IsValid() {
-		return v4
-	}
-	return v6
-}
-
 func roleFor(selfIsPublic bool, selfIP netip.Addr, peerIsPublic bool, peerVPNIP netip.Addr) control.Role {
 	if !selfIsPublic && peerIsPublic {
 		return control.Client