Google's ReCAPTCHA automatically shows a copyright badge on every page. You can hide this using CSS.
First, find out the page number(s) of the page(s) that actually include a form that uses ReCAPTCHA.
Then add the following to the theme's CSS (in this example it's for all except page 144):
- /* Google ReCaptcha badge */
- body:not(.page-id-144) .grecaptcha-badge {
- display: none;
- }