Index: remove_act.c
===================================================================
--- remove_act.c	(revision 5015)
+++ remove_act.c	(revision 5016)
@@ -28,7 +28,6 @@
 #include "config.h"
 #include "data.h"
 #include "action_helper.h"
-#include "set.h"
 #include "remove.h"
 #include "board.h"
 #include "funchash_core.h"