Started obj port and gave up.

include/assets/file_parsers/mtl_parser.hpp

@@ -57,8 +57,7 @@ protected:
 			const texture_id_lookup& texture_id_lookup,
 			material_id_lookup& material_id_lookup,
 			material_store& material_store,
-			store_type& store,
-			std::mutex& store_mutex
+			store_type& store
 		);
 
 		void operator()(lookup_type::const_pointer entry) noexcept;
@@ -77,7 +76,6 @@ protected:
 		material_id_lookup* m_material_id_lookup;
 		material_store* m_material_store;
 		store_type* m_store;
-		std::mutex* m_store_mutex;
 		data_type m_buffer{};
 	};