remove and transfer INVISIBLE_OBJECTS to branch

src/display.c

@@ -139,30 +139,6 @@ STATIC_DCL int FDECL(wall_angle, (struct rm *));
 
 #define remember_topology(x,y)		(lastseentyp[x][y] = levl[x][y].typ)
 
-#ifdef INVISIBLE_OBJECTS
-/*
- * vobj_at()
- *
- * Returns a pointer to an object if the hero can see an object at the
- * given location.  This takes care of invisible objects.  NOTE, this
- * assumes that the hero is not blind and on top of the object pile.
- * It does NOT take into account that the location is out of sight, or,
- * say, one can see blessed, etc.
- */
-struct obj *
-vobj_at(x,y)
-    xchar x,y;
-{
-    register struct obj *obj = level.objects[x][y];
-
-    while (obj) {
-	if (!obj->oinvis || See_invisible) return obj;
-	obj = obj->nexthere;
-    }
-    return ((struct obj *) 0);
-}
-#endif	/* else vobj_at() is defined in display.h */
-
 /*
  * magic_map_background()
  *