diff --git a/libc/include/sys/types.h b/libc/include/sys/types.h
index 8188f89..637ef02 100644
--- a/libc/include/sys/types.h
+++ b/libc/include/sys/types.h
@@ -25,6 +25,7 @@
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
+
 #ifndef _SYS_TYPES_H_
 #define _SYS_TYPES_H_
 
@@ -105,20 +106,6 @@
 typedef loff_t off64_t;
 #endif
 
-/* while POSIX wants these in <sys/types.h>, we
- * declare then in <pthread.h> instead */
-#if 0
-typedef  .... pthread_attr_t;
-typedef  .... pthread_cond_t;
-typedef  .... pthread_condattr_t;
-typedef  .... pthread_key_t;
-typedef  .... pthread_mutex_t;
-typedef  .... pthread_once_t;
-typedef  .... pthread_rwlock_t;
-typedef  .... pthread_rwlock_attr_t;
-typedef  .... pthread_t;
-#endif
-
 #if !defined(__LP64__)
 /* This historical accident means that we had a signed socklen_t on 32-bit architectures. */
 typedef int32_t __socklen_t;