route: zap unused sockaddr

[Klemens Nanni]

No object change.

OK?

Index: show.c
===================================================================
RCS file: /cvs/src/sbin/route/show.c,v
retrieving revision 1.112
diff -u -p -r1.112 show.c
--- show.c      1 May 2018 18:13:21 -0000       1.112
+++ show.c      2 Jun 2018 22:55:26 -0000
@@ -140,7 +140,6 @@ p_rttables(int af, u_int tableid, char p
        char *buf = NULL, *next, *lim = NULL;
        size_t needed;
        int mib[7], mcnt;
-       struct sockaddr *sa;
 
        mib[0] = CTL_NET;
        mib[1] = PF_ROUTE;
@@ -164,7 +163,6 @@ p_rttables(int af, u_int tableid, char p
                        rtm = (struct rt_msghdr *)next;
                        if (rtm->rtm_version != RTM_VERSION)
                                continue;
-                       sa = (struct sockaddr *)(next + rtm->rtm_hdrlen);
                        p_rtentry(rtm);
                }
        }