scsi: MAINTAINERS: Adjust to reflect gdth scsi driver removal

Commit 0653c35 ("scsi: Drop gdth driver") fails to update MAINTAINERS.

Hence, ./scripts/get_maintainer.pl --self-test=patterns complains:

  warning: no file matches F:    drivers/scsi/gdt*

Remove the GDT SCSI DISK ARRAY CONTROLLER DRIVER section as well, as the
driver is removed now.

Link: https://lore.kernel.org/r/20210129052829.13642-1-lukas.bulwahn@gmail.com
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

MAINTAINERS

@@ -7378,13 +7378,6 @@ M:	Kieran Bingham <kbingham@kernel.org>
 S:	Supported
 F:	scripts/gdb/
 
-GDT SCSI DISK ARRAY CONTROLLER DRIVER
-M:	Achim Leubner <achim_leubner@adaptec.com>
-L:	linux-scsi@vger.kernel.org
-S:	Supported
-W:	http://www.icp-vortex.com/
-F:	drivers/scsi/gdt*
-
 GEMTEK FM RADIO RECEIVER DRIVER
 M:	Hans Verkuil <hverkuil@xs4all.nl>
 L:	linux-media@vger.kernel.org