MAINTAINERS: Remove bouncing Keem Bay maintainer

MAINTAINERS: Remove bouncing Keem Bay maintainer

This maintainer's email no longer works. Remove it from MAINTAINERS.

There is still one listed maintainer for the "INTEL KEEM BAY DRM
DRIVER".

Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Anitha Chrisanthus <anitha.chrisanthus@intel.com>
Cc: Anitha Chrisanthus <anitha.chrisanthus@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@gmail.com>
Cc: Simona Vetter <simona@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Link: https://patch.msgid.link/20260305172415.3116438-1-dave.hansen@linux.intel.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>