remove visual composer from one single page wordpress

Solution:1

It can be filtered when WP pulls all active plugins. We check if it’s admin side and if the current admin page is correct, then check the URL to see if post with ID 2 (Sample Page) is being edited, and finally remove the plugin from the option list:

add_filter( 'option_active_plugins', function ( $option ) 
{  
    global $pagenow;
    if( 'post.php' !== $pagenow || !is_admin() )
        return $option;

    if( !isset( $_GET['post'] ) || '2' !== $_GET['post'] )
        return $option;

    return array_diff( $option, array( 'js_composer/js_composer.php' ) );
});

Solution:2

If you mean “remove visual composer” on the front-end view you can use this plugin: Plugin organizer

Just install, activate the option “Selective plugin loading” as on the screen capture

 

And go thru wordpress admin to the page you want to disable Visual composer, scroll down to find the Plugin organizer options” and disable “visual composer” for that page just dragging and dropping to one side or another. You can do it for any page you want.