Hide button on feattured images

Hello

How do I hide the button on featured images as am unable to use one of these methods:

The image has the data-pin-no-hover=”true” attribute set
The image has the nopin=”nopin” attribute set
Your image src starts with data:

I would be fine with a solution that hid it for all featured images anywhere on the site as I only wish to show it within Nextgen galleries.

Thanks

Joel

https://wordpress.org/plugins/pinterest-hover-pin-it-button/