I wouldn't do the two labs ... BUT .. how would you use your free time?
If it's used on other subjects, it's productive. Even if it's used to mow your lawn or doing laundry, it's fine. If it's spent in a bar chasing ass, don't do it.
I think it's become clear that you already had your mind made up before you even started this thread. If you say that the course is an elective and has nothing to do with your major then why even take the class from the beginning.