clients: remove leftover from simple-dmabuf-drm
This header is not used anymore.
Signed-off-by: Simon Ser <contact@emersion.fr>
Fixes: 0a4f6e7d6d ("clients: drop simple-dmabuf-drm")
Reported-by: Marius Vlad <marius.vlad@collabora.com>
This commit is contained in: