HELP! How to delete "I am not a robot" on email signup forms

Site URL: https://saffron-ellipsoid-ef4m.squarespace.com/

Hi there,

A client has constant contact and we had to set up a zap to capture email signups on the SS newsletter form that's on many pages and on the blog signup page.

Is there a way to circumvent this? We haven't seen this on any other sites we've built and wonder if it's new? When we try to disable it, we get 

Disable reCAPTCHA?

At least one verification type is required for Squarespace Email Campaigns. To disable Google reCAPTCHA, Confirmation Email will be enabled.

But we aren't using SS email campaigns -any ideas?

Thanks!

Have you solved it yet?