Does this type of UI need a Delete button?

This screen is part of a multi-step process. This screen, in particular, lets you add user emails by clicking on the "Add email" button. Clicking "Add email" appends a new textbox to the list.

Once you've added all necessary emails, you can proceed to the next step.

If a user needs to delete an email, they can just clear the textbox and still be able to proceed to the next step. Only at least one email is required.

My question is - does this explicitly need a delete button should a user need to delete an email? Or is being able to clear a textfield a good/intuitive enough solution?