diff: Fix udp_usrreq.c to compile without IPSEC.

[YASUOKA Masahiko]

ok?

Fix compile without IPSEC.

Pointed out by Ivan Solonin.

Index: sys/netinet/udp_usrreq.c
===================================================================
RCS file: /disk/cvs/openbsd/src/sys/netinet/udp_usrreq.c,v
retrieving revision 1.184
diff -u -p -r1.184 udp_usrreq.c
--- sys/netinet/udp_usrreq.c    23 Apr 2014 12:25:35 -0000      1.184
+++ sys/netinet/udp_usrreq.c    23 Jun 2014 02:17:06 -0000
@@ -186,9 +186,9 @@ udp_input(struct mbuf *m, ...)
        struct m_tag *mtag;
        struct tdb_ident *tdbi;
        struct tdb *tdb;
+#endif /* IPSEC */
        int error;
        u_int32_t ipsecflowinfo = 0;
-#endif /* IPSEC */
 
        va_start(ap, m);
        iphlen = va_arg(ap, int);