to give wii to my friend who wants it clean for some reasonWhatever problem you're experiencing, it's probably not going to be solved by removing "all traces of homebrew." Why do you want to remove homebrew?
In most cases, simply removing the Homebrew Channel and any other custom apps will be enough to satisfy these kinds of friends. Without seeing a sysCheck, it's impossible to know what all should be done.to give wii to my friend who wants it clean for some reason