Fixed use-after-free

src/game.cpp

@@ -278,6 +278,8 @@ game::game() :
     // The reason for this move is so that g is not uninitialized when it gets to installing the parts into vehicles.
 }
 
+game::~game() = default;
+
 // Load everything that will not depend on any mods
 void game::load_static_data()
 {
@@ -403,11 +405,6 @@ void game::load_data_from_dir( const std::string &path, const std::string &src,
     DynamicDataLoader::get_instance().load_data_from_path( path, src, ui );
 }
 
-game::~game()
-{
-    MAPBUFFER.reset();
-}
-
 // Fixed window sizes
 #define MINIMAP_HEIGHT 7
 #define MINIMAP_WIDTH 7