If your website is on the Business or Online Store plans on Avoori, you can access “Remove Windows Live Writer Meta Tag” setting by going to your website admin > SEO > Advanced.
Enable “Remove Windows Live Writer meta tag in source code” to remove such meta tags for example
<link rel=”wlwmanifest” type=”application/wlwmanifest+xml” href=”https://www.avoori.com/wp-includes/wlwmanifest.xml” />