I have a Hart Steel razor that I honed and oiled with Camellia Oil and put into storage about 3 months ago. I got it out today to put back into my rotation and it appears the oil has dried up and left a scum on the razor. I tried a soft cloth and some alcohol but I cannot remove the scum. I thought about trying some super fine steel wool but I thought I would seek advice here first. This is a great shaving razor and I do not want to damage it. Any advice on how to remove the film?