Cleanup hardware queue

Some code cleanup. 
I don't need to do anything. @rexina added it in fece4f07286aa186f57c4f8f8f7c0962ec22026e   in [line 124](https://github.com/eitos/RTOS/blob/fece4f07286aa186f57c4f8f8f7c0962ec22026e/EiTOS/EiTOS.cppproj#L124)