No you don't have to get them removed. Wisdom teeth are considered vestigial organs (a vestige is a degenerative or imperfectly formed organ or structure having little or no utility, but in the earlier stage of development of a species performed a useful function). But there are risks associated with leaving them in, as I noted above.
Don't let discomfort be your guide however. Just because they don't bother you doesn't mean that damage isn't being done or will be in the future.
You should consult with your dentist about what are the more specific pros/cons in your case.
XI Wiki


