Schema

If you return false or an empty array on the wpseo_json_ld_output filter, you disable all Yoast SEO’s schema output.

add_filter( 'wpseo_json_ld_output', '__return_false' );

Typically code snippets are added to your theme’s functions.php file. If you’re not familiar with using code snippets, these articles have wonderful advice:
https://www.wpbeginner.com/plugins/how-to-easily-add-custom-code-in-wordpress-without-breaking-your-site/
https://www.wpbeginner.com/beginners-guide/beginners-guide-to-pasting-snippets-from-the-web-into-wordpress/

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