Code-Snippets-Functions/Execute a function on a child site/WordPress/remove-custom-fields-metabox-post-editor.txt

function wp_remove_post_custom_fields_metabox() {
     foreach ( get_post_types( '', 'names' ) as $post_type ) {
         remove_meta_box( 'postcustom' , $post_type , 'normal' );   
     }
}
add_action( 'admin_menu' , 'wp_remove_post_custom_fields_metabox' );