No not at all.
There is often the belief that life drawing is essential in an art college portfolio and this is not the case. Of course, if you are particularly good at it, enjoy it and it is important to the understanding of your overall creative drive then do include.
But reasons not to include are if you don’t enjoy it very often this shows by poor drawing with little energy. If you don’t enjoy it and therefore the drawings are weak then why include them just because you think the colleges want to see it? Far better to put in some drawings of other subject matter that you are really inspired by, you enjoy and therefore your drawing skills hopefully will reflect that.
I would however ask this question to college staff when you visit on their Open Days.