only commit surface when it changed

This is based off of a commit in wvkbd

Previously wvkbd (and suggpicker) would commit a (usually unchanged) surface at the framerate of the compositor,
this only commits the buffer when we render something new.

1 files changed, 0 insertions, 1 deletions

diff --git a/drw.h b/drw.h
index fb3df1c..c1139f4 100644
--- a/drw.h
+++ b/drw.h
@@ -15,7 +15,6 @@ struct drwsurf {
 	struct wl_surface *surf;
 	struct wl_buffer *buf;
 	struct wl_shm *shm;
-	struct wl_callback *cb;
 	unsigned char *pool_data;
 
 	cairo_t *cairo;