MAINTAINERS: Orphanize the 'GDB stub' subsystem

Nobody is looking at those files, downgrade this subsystem as orphan.

Remove the qemu-devel@nongnu.org entry because the list is always
selected by the 'All patches CC here' section.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
1 file changed