get rid of internal Close() method

openVulkanoCpp/IO/MemMappedFileInternal.hpp

@@ -34,12 +34,10 @@ namespace OpenVulkano
 #else
 		[[nodiscard]] bool InvalidHandle() const { return fileHandle == -1; }
 #endif
-		void Close();
 
 	private:
 		void* address = nullptr;
 		size_t size = 0;
-		bool closed = false;
 
 #ifdef _MSC_VER
 		HANDLE fileHandle;