When you go into the Media Library and select an image to edit, its associated ‘Attachment details’ page appears. On this page, there is a ‘File URL’ field which details the attachment file’s URL.

This field is created, using the following HTML Markup:

<span class="setting" data-setting="url">
    <label for="attachment-details-two-column-copy-link" class="name">File URL:</label>
        <input type="text" class="attachment-details-copy-link" id="attachment-details-two-column-copy-link" value="https://example.com/wp-content/uploads/2020/08/image-file-name.jpg" readonly="">
    <span class="copy-to-clipboard-container">
        <button type="button" class="button button-small copy-attachment-url" data-clipboard-target="#attachment-details-two-column-copy-link">Copy URL</button>
        <span class="success hidden" aria-hidden="true">Copied!</span>
    </span>
</span>

Ideally, I would like to be able to simply insert some kind of remove_action function into the theme’s functions.php file.