net: remove comment in ndisc_router_discovery

Removes superfluous (and misplaced) comment from ndisc_router_discovery.
Signed-off-by: Patrick Rohr <prohr@google.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20230726184742.342825-1-prohr@google.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

net/ipv6/ndisc.c

@@ -1266,10 +1266,6 @@ static enum skb_drop_reason ndisc_router_discovery(struct sk_buff *skb)
 	}
 #endif
 
-	/*
-	 *	set the RA_RECV flag in the interface
-	 */
-
 	in6_dev = __in6_dev_get(skb->dev);
 	if (!in6_dev) {
 		ND_PRINTK(0, err, "RA: can't find inet6 device for %s\n",