Strip3 is a very simple program to strip ID3 tags, or remove them from a file. It's a very very small program, only 72kb, and standalone. There are two ways to use it, one being using the files as an arguement (like "Strip 3 -song.mp3" in command prompt) or just running the program will remove all tags in the current folder and all subdirectories. Be careful, as you might accidentally wipe all of your tags.
That's all. It's portable and open source, and a nice little tool.
Visit Strip3 (Catalin Patulea) website for download