Turning off the "create a new password" email automation

I have a pricing plan on my website and when a new client purchases one, they receive an email to create a password. I don’t have anywhere for them to login to so it’s confusing. Is it possible to remove it?

When a user purchases a plan they are added as a member to the site. They should be able to log in to manage their plan.

What are the plans for ?

It may be possible to turn off in automations but I havnt checked.