Fix sim build - remove unncesessary header.

Change-Id: Ibeba75848eaf732b7d0c7aecc9e7be8dbd509a1c
diff --git a/libnetutils/ifc_utils.c b/libnetutils/ifc_utils.c
index fc56896..0ca5fe6 100644
--- a/libnetutils/ifc_utils.c
+++ b/libnetutils/ifc_utils.c
@@ -33,7 +33,6 @@
 #include <linux/route.h>
 #include <linux/ipv6_route.h>
 #include <netdb.h>
-#include <net/if.h>
 #include <linux/wireless.h>
 
 #ifdef ANDROID