removing admin gen css files at app/project level

*Configuration.class.php

<?php

class privateConfiguration extends sfApplicationConfiguration {

  public function configure() {

    $this->dispatcher->connect('view.configure_format', array($this, 'listenToViewConfigureFormatEvent'));

  }

  public function listenToViewConfigureFormatEvent(sfEvent $event) {

    $response = $event['response'];

    $response->removeStylesheet('/sfDoctrinePlugin/css/global.css');
    $response->removeStylesheet('/sfDoctrinePlugin/css/default.css');

  }

}