[xgarb]

I got it working with this:

namespace XLite\Module\ZZZTEST\ZtestRemoveCss;

/**
 *
 * @Decorator\Depend({"CDev\SimpleCMS"}),
 */


class Top extends \XLite\View\Menu\Customer\Top implements \XLite\Base\IDecorator
{

    /**
     * Return the CSS files for the menu
     *
     * @return array
     */
    public function getCSSFiles()
    {
	
        $list = parent::getCSSFiles();
		
		foreach ($list as $key => $css_file) {
            if ($css_file == 'modules/CDev/SimpleCMS/css/primary_menu.css') {
               unset($list[$key]);
            }
        }
			
        return $list;
    }

}

You can see it working before and after in the debug

[15:32:28.000000] array (
  0 => 
  array (
    'file' => 'css/style.less',
    'media' => 'screen',
    'merge' => 'bootstrap/css/bootstrap.less',
  ),
  1 => 'modules/CDev/SocialLogin/style.css',
  2 => 'modules/CDev/Sale/css/lc.css',
  3 => 'modules/CDev/Paypal/style.css',
  4 => 
  array (
    'file' => 'modules/CDev/Paypal/style.less',
    'media' => 'screen',
    'merge' => 'bootstrap/css/bootstrap.less',
  ),
  5 => 'modules/CDev/SimpleCMS/css/primary_menu.css',
)
Runtime id: fca9e552e9db6c00b881ade23b2ba653
SAPI: fpm-fcgi; IP: 213.143.60.121
URI: /x53-upgrade-test1/x835-pk.html
Method: GET

[15:32:28.000000] array (
  0 => 
  array (
    'file' => 'css/style.less',
    'media' => 'screen',
    'merge' => 'bootstrap/css/bootstrap.less',
  ),
  1 => 'modules/CDev/SocialLogin/style.css',
  2 => 'modules/CDev/Sale/css/lc.css',
  3 => 'modules/CDev/Paypal/style.css',
  4 => 
  array (
    'file' => 'modules/CDev/Paypal/style.less',
    'media' => 'screen',
    'merge' => 'bootstrap/css/bootstrap.less',
  ),
)

It's always a problem for me working what and how to override methods but at least it's working now.