*: rename ATTRIBUTE_XXX to just XXX.

diff --git a/coreutils/cksum.c b/coreutils/cksum.c
index 074d068..5987184 100644
--- a/coreutils/cksum.c
+++ b/coreutils/cksum.c
@@ -9,7 +9,7 @@
 #include "libbb.h"
 
 int cksum_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int cksum_main(int argc ATTRIBUTE_UNUSED, char **argv)
+int cksum_main(int argc UNUSED_PARAM, char **argv)
 {
 	uint32_t *crc32_table = crc32_filltable(NULL, 1);
 	uint32_t crc;