Revert (powerpc buildds still run 2.6.15 kernels):

2009-12-21  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/linux/futimens.c: Handle AT_FDCWD.

--- a/sysdeps/unix/sysv/linux/futimens.c.orig	2010-01-05 09:18:42.882336689 +0000
+++ b/sysdeps/unix/sysv/linux/futimens.c	2010-01-05 09:19:20.562336504 +0000
@@ -33,11 +33,6 @@
 futimens (int fd, const struct timespec tsp[2])
 {
 #ifdef __NR_utimensat
-  if (fd < 0)
-    {
-      __set_errno (EBADF);
-      return -1;
-    }
   return INLINE_SYSCALL (utimensat, 4, fd, NULL, tsp, 0);
 #else
   __set_errno (ENOSYS);