If you simply want to eliminate all ID3v2 data to "clean" the mp3 of excess data, but you don't mind if the ID3v1 tags stay, then you can just use Itunes. Select all the tracks and convert the ID3 version to 1.1.
I use a PC to run
TidyMP3 on files before I import them into Itunes, so as to get rid of all the garbage from whatever random tag program was used previously. I use the /p option to keep the ID3v1 tag, so I have something to work with, but the ID3v2 tag (and anything else that isn't LAME or MP3 data) is removed. I then import the files into Itunes.
I have no use for ID3v1 tags, so I immediately convert them all to ID3v2.4 (which, in Itunes, removes the ID3v1 tag as well) and make any changes I wish.