Hi Steven. Couple of options:
1. Use the Add Admin CSS plugin with this CSS:
.appearance_page_generate-options #gen-license-keys .email-container {
display: none;
}
Or add this to your child theme functions.php file:
add_action('admin_head', 'my_admin_styles');
function my_admin_styles() {
echo '<style>
.appearance_page_generate-options #gen-license-keys .email-container {
display: none;
}
</style>';
}
Edit – I see Tom beat me to it while I was writing my reply ๐