Remove redundant call to ipsec_getpolicybyaddr().

ipsec_hdrsiz() will call it internally.

Sponsored by:	Yandex LLC

sys/netinet6/ip6_forward.c

@@ -422,8 +422,6 @@ again2:
 		if (mcopy) {
 			u_long mtu;
 #ifdef IPSEC
-			struct secpolicy *sp;
-			int ipsecerror;
 			size_t ipsechdrsiz;
 #endif /* IPSEC */
 
@@ -436,15 +434,10 @@ again2:
 			 * case, as we have the outgoing interface for
 			 * encapsulated packet as "rt->rt_ifp".
 			 */
-			sp = ipsec_getpolicybyaddr(mcopy, IPSEC_DIR_OUTBOUND,
-				IP_FORWARDING, &ipsecerror);
-			if (sp) {
-				ipsechdrsiz = ipsec_hdrsiz(mcopy,
-					IPSEC_DIR_OUTBOUND, NULL);
-				if (ipsechdrsiz < mtu)
-					mtu -= ipsechdrsiz;
-			}
-
+			ipsechdrsiz = ipsec_hdrsiz(mcopy, IPSEC_DIR_OUTBOUND,
+			    NULL);
+			if (ipsechdrsiz < mtu)
+				mtu -= ipsechdrsiz;
 			/*
 			 * if mtu becomes less than minimum MTU,
 			 * tell minimum MTU (and I'll need to fragment it).