Cross-sells and Upsells - Unhook the Upsells from a single product page

With  Cross-sells and Upsells, if you want to remove the upsells from displaying after the content, you can use this filter below. You may wish to do this if you wanted to re-hook the upsells onto another action hook.

<?php
remove_filter( 'the_content', 'edd_csau_single_download_upsells', 100 );