Remove old references to battle pyramid

src/script.c

@@ -406,7 +406,7 @@ u8 *mapheader_get_first_match_from_tagged_ptr_list(u8 tag)
     }
 }
 
-void mapheader_run_script_with_tag_x1(void)
+void RunOnLoadMapScript(void)
 {
     mapheader_run_script_by_tag(1);
 }