[hurd,commited] nptl: Drop comment about PTHREAD_IN_LIBC

nptl is now always in libc.
---
 sysdeps/nptl/dl-mutex.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sysdeps/nptl/dl-mutex.c b/sysdeps/nptl/dl-mutex.c
index 93f956a7f6..2acc1514ab 100644
--- a/sysdeps/nptl/dl-mutex.c
+++ b/sysdeps/nptl/dl-mutex.c
@@ -16,7 +16,7 @@
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
-/* Use the mutex implementation in libc (assuming PTHREAD_IN_LIBC).  */
+/* Use the mutex implementation in libc.  */
 
 #include <assert.h>
 #include <first-versions.h>
-- 
2.51.0