Use this snippet in your theme’s functions.php file to disable the editor for a specific page template.

[php]
add_action( ‘admin_init’, ‘hide_editor’ );

function hide_editor() {
    // Get the Post ID.
    $post_id = $_GET[‘post’] ? $_GET[‘post’] : $_POST[‘post_ID’] ;
    if( !isset( $post_id ) ) return;

    // Get the name of the Page Template file.
    $template_file = get_post_meta($post_id, ‘_wp_page_template’, true);
    
    if($template_file == ‘contact.php’){ // edit the template name
        remove_post_type_support(‘page’, ‘editor’);
    }
}

[/php]