CLEANUP: quic: Remove trailing spaces

This spaces have come with this commit:
  "MEDIUM: quic: xprt traces rework".
diff --git a/src/xprt_quic.c b/src/xprt_quic.c
index 8bc15ef..3d9f704 100644
--- a/src/xprt_quic.c
+++ b/src/xprt_quic.c
@@ -4158,7 +4158,7 @@
 		 *
 		 * TODO: this part should be removed. This was there because the
 		 * datagram parser was not executed by only one thread.
-		 */ 
+		 */
 		qc_set_timer(qc);
 		if (tick_isset(qc->timer) && tick_is_lt(qc->timer, now_ms))
 			task_wakeup(qc->timer_task, TASK_WOKEN_MSG);
@@ -5067,7 +5067,7 @@
 	ret = 1;
  out:
 	TRACE_LEAVE(QUIC_EV_CONN_RXPKT);
-	return ret; 
+	return ret;
 }
 
 /* Return the QUIC version (quic_version struct) with <version> as version number
@@ -5919,7 +5919,7 @@
 				TRACE_PROTO("Initial without token, sending retry",
 				            QUIC_EV_CONN_LPKT, NULL, NULL, NULL, qv);
 				if (send_retry(l->rx.fd, &dgram->saddr, pkt, qv)) {
-					TRACE_ERROR("Error during Retry generation", 
+					TRACE_ERROR("Error during Retry generation",
 					            QUIC_EV_CONN_LPKT, NULL, NULL, NULL, qv);
 					goto err;
 				}