Improve undo/redo

Currently a snapshot is taken whenever an operator is completed or
a certain idle time in either insert or replace mode is detected.

1 files changed, 0 insertions, 3 deletions

diff --git a/vis.h b/vis.h
index 3fc9dad..b7272b4 100644
--- a/vis.h
+++ b/vis.h
@@ -88,9 +88,6 @@ struct Syntax {                              /* a syntax definition */
 Vis *vis_new(int width, int height);
 void vis_free(Vis*); 
 void vis_resize(Vis*, int width, int height); 
-void vis_snapshot(Vis*);
-void vis_undo(Vis*);
-void vis_redo(Vis*);
 void vis_draw(Vis*);
 void vis_update(Vis*);
 void vis_insert_key(Vis*, const char *c, size_t len);