MAINTAINERS: update s-Par driver maintainer list

Benjamin Romer is no longer a maintainer for the Unisys s-Par driver,
presently in drivers/staging/unisys/.
Signed-off-by: NDavid Kershner <david.kershner@unisys.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

MAINTAINERS

@@ -11282,7 +11282,6 @@ F:	include/linux/cdrom.h
 F:	include/uapi/linux/cdrom.h
 
 UNISYS S-PAR DRIVERS
-M:	Benjamin Romer <benjamin.romer@unisys.com>
 M:	David Kershner <david.kershner@unisys.com>
 L:	sparmaintainer@unisys.com (Unisys internal)
 S:	Supported