*: rename ATTRIBUTE_XXX to just XXX.

diff --git a/coreutils/rm.c b/coreutils/rm.c
index 1774ce2..975f226 100644
--- a/coreutils/rm.c
+++ b/coreutils/rm.c
@@ -20,7 +20,7 @@
 /* This is a NOFORK applet. Be very careful! */
 
 int rm_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int rm_main(int argc ATTRIBUTE_UNUSED, char **argv)
+int rm_main(int argc UNUSED_PARAM, char **argv)
 {
 	int status = 0;
 	int flags = 0;