media: MAINTAINERS: Remove zoran driver

Cleanup MAINTAINERS from zoran record since the driver was removed.

Fixes: 8dce4b26 ("media: zoran: remove deprecated driver")
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>