MINOR: mux-quic: remove quic_transport_params_update

This function is unused.
diff --git a/include/haproxy/xprt_quic.h b/include/haproxy/xprt_quic.h
index 4107fbe..e27f299 100644
--- a/include/haproxy/xprt_quic.h
+++ b/include/haproxy/xprt_quic.h
@@ -56,12 +56,6 @@
 	return qc->flags & QUIC_FL_CONN_LISTENER;
 }
 
-/* Update the mux stream-related transport parameters from <qc> connection */
-static inline void quic_transport_params_update(struct quic_conn *qc)
-{
-	quic_mux_transport_params_update(qc->qcc);
-}
-
 /* Returns the required length in bytes to encode <cid> QUIC connection ID. */
 static inline size_t sizeof_quic_cid(const struct quic_cid *cid)
 {