The Leads functionality is tightly linked with the Contact form. All the contact forms that users are submitting are saved in the Leads section of that project no matter if you set up marketing integrations like Mailchimp, Drip, etc.
This is where the leads are saved when you put a contact form on your page(s) and a visitor of your website submits the form. You can Export or Delete leads from the two buttons on the bottom.
