DVR service fee -- $7.50/month

Is there a way to return the TV DVR box and avoid paying the newly increased equipment fee of $7.50/month? As I have a Roku TV, we don't use the Xfinity box (it is still in the cardboard box that was posted to us). With the increase in this equipment rental as well as broadcast and sports monthly fees, my Xfinity bill is forever increasing and not sustainable.