*: rename ATTRIBUTE_XXX to just XXX.

diff --git a/networking/udhcp/dhcpd.c b/networking/udhcp/dhcpd.c
index a6264ad..0cd6b9d 100644
--- a/networking/udhcp/dhcpd.c
+++ b/networking/udhcp/dhcpd.c
@@ -23,7 +23,7 @@
 
 
 int udhcpd_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int udhcpd_main(int argc ATTRIBUTE_UNUSED, char **argv)
+int udhcpd_main(int argc UNUSED_PARAM, char **argv)
 {
 	fd_set rfds;
 	struct timeval tv;