There doesn’t appear to be a way to remove the “Connect Yoast SEO with Zapier to instantly share your published posts with 2000+ destinations such as Twitter, Facebook and more.” that clutters up the Publish meta box. Other options can be disabled in the Yoast SEO Integration settings however this one is disabled and unable to be changed without purchasing a subscription to their Premium package.
Add this to your functions.php file
add_action( 'admin_head', function () { echo ' <style> div.misc-pub-section.yoast.yoast-seo-score.yoast-zapier-text { display: none; } </style> '; } );