scripts/kernel-doc: drop maintainer

Drop maintainership of scripts/kernel-doc.
Patches can go thru the kbuild tree.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc:	Rob Landley <rob@landley.net>
Signed-off-by: Michal Marek <mmarek@suse.cz>

MAINTAINERS

@@ -2373,11 +2373,6 @@ S:	Maintained
 F:	Documentation/hwmon/dme1737
 F:	drivers/hwmon/dme1737.c
 
-DOCBOOK FOR DOCUMENTATION
-M:	Randy Dunlap <rdunlap@xenotime.net>
-S:	Maintained
-F:	scripts/kernel-doc
-
 DOCKING STATION DRIVER
 M:	Shaohua Li <shaohua.li@intel.com>
 L:	linux-acpi@vger.kernel.org