remove odd and misleading comments from uio.h

Signed-off-by: NChristoph Hellwig <hch@lst.de>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

include/linux/uio.h

@@ -13,10 +13,6 @@
  *		2 of the License, or (at your option) any later version.
  */
 
-
-/* A word of warning: Our uio structure will clash with the C library one (which is now obsolete). Remove the C
-   library one from sys/uio.h if you have a very old library set */
-
 struct iovec
 {
 	void __user *iov_base;	/* BSD uses caddr_t (1003.1g requires void *) */
@@ -38,11 +34,6 @@ struct kvec {
  
 #define UIO_FASTIOV	8
 #define UIO_MAXIOV	1024
-#if 0
-#define UIO_MAXIOV	16	/* Maximum iovec's in one operation 
-				   16 matches BSD */
-                                /* Beg pardon: BSD has 1024 --ANK */
-#endif
 
 /*
  * Total number of bytes covered by an iovec.