Can’t delete sitemap page created by Google Sitemap Generator for WordPress

I installed Google Sitemap Generator for WordPress https://www.arnebrachhold.de/2005/06/05/google-sitemaps-generator-v2-final

a while ago and never could get it to work so i deleted it and the files associated with it sitemap.xml.gz
sitemap.xml
sitemap.php

and I installed the Dagon Design Sitemap Generator Plugin for WordPress https://www.dagondesign.com/articles/sitemap-generator-plugin-for-wordpress/

but i couldn’t get rid of the https://adultaddstrengths.com/sitemap page that the old plugin created. here’s the beginning text of the file

This XML file does not appear to have any style information associated with it. The document tree is shown below.

<!– generator=”wordpress/2.2″ –>
?
<!–
sitemap-generator-url=”https://www.arnebrachhold.de&#8221; sitemap-generator-version=”2.7.1″

I’ve gone through my wordpress files and searched my posts and pages and still can’t find it. I’ve tried create a new sitemap page by using the new plugin didn’t work. I tried creating a new page in wordpress called sitemap and deleting it and that didn’t work.

Arne’s comment section are closed so i can’t ask him.

Any idea how i can find and delete that sitemap page?