remove obsolete comment.

regress/lib/libpthread/sleep1/sleep1.c

@@ -1,4 +1,4 @@
-/*	$NetBSD: sleep1.c,v 1.2 2005/08/29 18:52:16 drochner Exp $	*/
+/*	$NetBSD: sleep1.c,v 1.3 2009/03/08 19:17:11 christos Exp $	*/
 
 #include <signal.h>
 #include <stdio.h>
@@ -10,10 +10,6 @@
 void *threadfunc(void *);
 void handler(int);
 
-/*
- * More than enough to cross the border from the present time until time_t
- * wraps in 2038.
- */
 #define LONGTIME 2000000000 
 
 int