The old callbacks lastclose and output_poll_changed are deprecated and
unused. Remove them from the documentation.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20240812083000.337744-7-tzimmermann@suse.de