Remove Google reCaptcha Privacy Badge

First, you need to add the privacy text under any form:

<small class="recaptcha-privacy">
	Protected by reCaptcha
	<a href="https://www.google.com/intl/en/policies/privacy/" target="_blank">Privacy</a>
	<span aria-hidden="true" role="presentation"> - </span>
	<a href="https://www.google.com/intl/en/policies/terms/" target="_blank">Terms</a>
</small>

This is the CSS to hide the automatically created reCaptcha privacy text on every page:

.grecaptcha-badge {
    display: none;
}