Hi,
The easiest way is using the CSS to hide the link. Here is the CSS you can try:
.uwp-footer-links a.uwp-register-link {
display: none !important;
}
Another way is to override the template login.php to the theme and remove the following code from the file:
<div class="uwp-footer-link d-inline-block">
<?php
echo aui()->button(array(
'type' => 'a',
'href' => uwp_get_register_page_url(),
'class' => 'd-block text-center mt-2 small uwp-register-link',
'content' => uwp_get_option("register_link_title") ? uwp_get_option("register_link_title") : __( 'Create account', 'userswp' ),
'extra_attributes' => array('rel'=>'nofollow')
));
?>
</div>
Let me know if it works for you or not.
Regards,
Patrik