MAINTAINERS: remove section SMX UIO Interface

Commit d6e976c0d2 ("UIO: Remove SMX
Cryptengine driver") removed the file.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Ben Nizette <bn@niasdigital.com>
Acked-by: Hans J. Koch <hjk@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

MAINTAINERS

@@ -5269,11 +5269,6 @@ L:	netdev@vger.kernel.org
 S:	Supported
 F:	drivers/net/smsc9420.*
 
-SMX UIO Interface
-M:	Ben Nizette <bn@niasdigital.com>
-S:	Maintained
-F:	drivers/uio/uio_smx.c
-
 SN-IA64 (Itanium) SUB-PLATFORM
 M:	Jes Sorensen <jes@sgi.com>
 L:	linux-altix@sgi.com