zebra: remove rt_ioctl kernel interface

None of the BSDs uses ioctls to set routes anymore.

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/Makefile.am b/zebra/Makefile.am
index 002b4f2..045897a 100644
--- a/zebra/Makefile.am
+++ b/zebra/Makefile.am
@@ -50,7 +50,7 @@
 
 EXTRA_DIST = if_ioctl.c if_ioctl_solaris.c if_netlink.c \
         if_sysctl.c ipforward_proc.c \
-	ipforward_solaris.c ipforward_sysctl.c rt_ioctl.c rt_netlink.c \
+	ipforward_solaris.c ipforward_sysctl.c rt_netlink.c \
 	rt_socket.c rtread_netlink.c rtread_sysctl.c \
 	rtread_getmsg.c kernel_socket.c kernel_netlink.c \
 	ioctl.c ioctl_solaris.c \