net: Remove nfs.h include from bootp.c

Nothing from this header is used there, so remove it.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
diff --git a/net/bootp.c b/net/bootp.c
index 73370a1..59bb209 100644
--- a/net/bootp.c
+++ b/net/bootp.c
@@ -14,7 +14,6 @@
 #include <net.h>
 #include <net/tftp.h>
 #include "bootp.h"
-#include "nfs.h"
 #ifdef CONFIG_LED_STATUS
 #include <status_led.h>
 #endif