Backout all changes related to using kernel for linkdetect

Having kernel cleanup FIB was not ideal for a couple reasons:
1. It still generates lots of netlink events if there are lots
   of static routes.
2. Kernel changes were not accepted in mainline kernel "do it in
   userspace"

1 files changed, 0 insertions, 28 deletions

diff --git a/zebra/linkdetect_null.c b/zebra/linkdetect_null.c
deleted file mode 100644
index 1f160c8e..00000000
--- a/zebra/linkdetect_null.c
+++ /dev/null
@@ -1,28 +0,0 @@
-/* NULL method for testing. */
-
-#include <zebra.h>
-
-
-int
-if_linkdetect_on (const char *name)
-{
-  return 0;
-}
-
-int
-if_linkdetect_off (const char *name)
-{
-  return 0;
-}
-
-int
-if_linkdetect_ipv6_on (const char *name)
-{
-  return 0;
-}
-
-int
-if_linkdetect_ipv6_off (const char *name)
-{
-  return 0;
-}