MAINTAINERS: drop spice+ui maintainership

Remove myself from spice and ui entries.
Flip status to "Orphan" for entries which have nobody else listed.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Message-ID: <20240528083858.836262-5-kraxel@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>

MAINTAINERS

@@ -3058,8 +3058,7 @@ F: stubs/memory_device.c
 F: docs/nvdimm.txt
 
 SPICE
-M: Gerd Hoffmann <kraxel@redhat.com>
-S: Odd Fixes
+S: Orphan
 F: include/ui/qemu-spice.h
 F: include/ui/spice-display.h
 F: ui/spice-*.c
@@ -3069,7 +3068,6 @@ F: qapi/ui.json
 F: docs/spice-port-fqdn.txt
 
 Graphics
-M: Gerd Hoffmann <kraxel@redhat.com>
 M: Marc-André Lureau <marcandre.lureau@redhat.com>
 S: Odd Fixes
 F: ui/