stop mainaining UUID

The uuid code is very low maintainance now that the major overhaul
has completed, and doesn't need it's own tree.  All the recent work
has been done by Andy who'd like to stay on as a reviewer without an
explicit tree.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

MAINTAINERS

@@ -21818,11 +21818,9 @@ W:	http://en.wikipedia.org/wiki/Util-linux
 T:	git git://git.kernel.org/pub/scm/utils/util-linux/util-linux.git
 
 UUID HELPERS
-M:	Christoph Hellwig <hch@lst.de>
 R:	Andy Shevchenko <andriy.shevchenko@linux.intel.com>
 L:	linux-kernel@vger.kernel.org
 S:	Maintained
-T:	git git://git.infradead.org/users/hch/uuid.git
 F:	include/linux/uuid.h
 F:	include/uapi/linux/uuid.h
 F:	lib/test_uuid.c