I just received a Nutribullet and an insert says to go to nutriliving.com and click the register button. I looked high and low for that button.
No register button/
It would seem that this is not a requirement. However, when you have inserts with your product that tell your customer to click a register button - best practice would be to keep the button and indicate that registration was no longer required. Unless of course you want customers to continue to find something on your website that you say exists - but doesn't exist.