Remove a cross include from a_star.cpp

core/math/a_star.cpp

@@ -32,7 +32,6 @@
 
 #include "core/math/geometry_3d.h"
 #include "core/object/script_language.h"
-#include "scene/scene_string_names.h"
 
 int AStar::get_available_point_id() const {
 	if (points.has(last_free_id)) {