How to Disable Yoast SEO JSON-LD Scheme?
Copy/paste this code at the very bottom of your theme’s function.php:
// Disable Yoast SEO JSON-LD Scheme by SEODOX
add_filter( 'wpseo_json_ld_output', '__return_false' );
This will remove Yoast SEO plugin json-ld output from html head:
<script type=”application/ld+json” class=”yoast-schema-graph”> … </script>
Removing default Yoast SEO scheme will be useful, when you prefer to use another WordPress scheme plugin or custom scheme configuration.