Remove link under header image

Hi, my site is https://www.peterdshapiro.com.
I’ve just added a MENU button (three-bar hamburger) which appears on top of the header image when the site is accessed by a mobile device. All good. Except that the header image itself seems to be linked to the Home page so when the MENU button is tapped, many times the result is simply to refresh the Home page. How can I remove the link under the header image so that this no longer happens?

Thanks,

–Peter