*: rename ATTRIBUTE_XXX to just XXX.

diff --git a/networking/nc_bloaty.c b/networking/nc_bloaty.c
index 5f7bd03..41db945 100644
--- a/networking/nc_bloaty.c
+++ b/networking/nc_bloaty.c
@@ -177,7 +177,7 @@
 }
 
 /* timeout and other signal handling cruft */
-static void tmtravel(int sig ATTRIBUTE_UNUSED)
+static void tmtravel(int sig UNUSED_PARAM)
 {
 	unarm();
 	longjmp(jbuf, 1);
@@ -222,7 +222,7 @@
  that would be security-critical, which is why it's ifdefed out by default.
  Use at your own hairy risk; if you leave shells lying around behind open
  listening ports you deserve to lose!! */
-static int doexec(char **proggie) ATTRIBUTE_NORETURN;
+static int doexec(char **proggie) NORETURN;
 static int doexec(char **proggie)
 {
 	xmove_fd(netfd, 0);