Bundle/CoreBundle/Builder/ViewCssBuilder.php
public function removeCssFile($hash)
    {
        $file = $this->getViewCssFileFromHash($hash);
        if (file_exists($file)) {
            unlink($file);
        }
    }
public function removeCssFile($hash)
    {
        $file = $this->getViewCssFileFromHash($hash);
        if (file_exists($file)) {
            unlink($file);
        }
    }
public function removeCssFile ( $ hash ) { $ file = $ this -> getViewCssFileFromHash ( $ hash ) ; if ( file_exists ( $ file ) ) { unlink ( $ file ) ; } }
Remove css file.

@param $hash
Remove css file .