build: remove INRIA, NRL and MUSICA IPv6 quirks

Valar dohaeris.

Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
Acked-by: Greg Troxel <gdt@ir.bbn.com>
Acked-by: Feng Lu <lu.feng@6wind.com>
Acked-by: Paul Jakma <paul@jakma.org>
diff --git a/zebra/connected.c b/zebra/connected.c
index c4f87f4..2db981b 100644
--- a/zebra/connected.c
+++ b/zebra/connected.c
@@ -347,7 +347,7 @@
   /* Apply mask to the network. */
   apply_mask_ipv6 (&p);
 
-#if ! defined (MUSICA) && ! defined (LINUX)
+#ifndef LINUX
   /* XXX: It is already done by rib_bogus_ipv6 within rib_add_ipv6 */
   if (IN6_IS_ADDR_UNSPECIFIED (&p.prefix))
     return;
diff --git a/zebra/ipforward_sysctl.c b/zebra/ipforward_sysctl.c
index 8824418..57ed185 100644
--- a/zebra/ipforward_sysctl.c
+++ b/zebra/ipforward_sysctl.c
@@ -23,10 +23,6 @@
 #include "privs.h"
 #include "zebra/ipforward.h"
 
-#ifdef NRL
-#include <netinet6/in6.h>
-#endif /* NRL */
-
 #include "log.h"
 
 #define MIB_SIZ 4
@@ -106,7 +102,7 @@
 {
   CTL_NET,
   PF_INET6,
-#if defined(KAME) || defined(NRL)
+#if defined(KAME)
   IPPROTO_IPV6,
   IPV6CTL_FORWARDING
 #else /* NOT KAME */
diff --git a/zebra/rt_socket.c b/zebra/rt_socket.c
index 90ed73d..cde71ef 100644
--- a/zebra/rt_socket.c
+++ b/zebra/rt_socket.c
@@ -254,13 +254,8 @@
   char *p, *lim;
   int len;
 
-#if defined (INRIA)
-  if (IN_ANYADDR6 (mask)) 
-    return sizeof (long);
-#else /* ! INRIA */
   if (IN6_IS_ADDR_UNSPECIFIED (&mask)) 
     return sizeof (long);
-#endif /* ! INRIA */
 
   sin6.sin6_addr = mask;
   len = sizeof (struct sockaddr_in6);
diff --git a/zebra/zebra_rib.c b/zebra/zebra_rib.c
index effe233..31469ca 100644
--- a/zebra/zebra_rib.c
+++ b/zebra/zebra_rib.c
@@ -2692,11 +2692,11 @@
 		struct in6_addr *gate, unsigned int ifindex, int table)
 {
   if (type == ZEBRA_ROUTE_CONNECT && IN6_IS_ADDR_UNSPECIFIED (&p->prefix)) {
-#if defined (MUSICA) || defined (LINUX)
+#ifdef LINUX
     /* IN6_IS_ADDR_V4COMPAT(&p->prefix) */
     if (p->prefixlen == 96)
       return 0;
-#endif /* MUSICA */
+#endif /* LINUX */
     return 1;
   }
   if (type == ZEBRA_ROUTE_KERNEL && IN6_IS_ADDR_UNSPECIFIED (&p->prefix)