Piwik\Plugins\Installation\ServerFilesGenerator::deleteWebConfigFiles PHP Method

    public static function deleteWebConfigFiles()
    {
        $path = PIWIK_INCLUDE_PATH;
        @unlink($path . '/web.config');
        @unlink($path . '/libs/web.config');
        @unlink($path . '/vendor/web.config');
        @unlink($path . '/plugins/web.config');
    }

 public static function update()
 {
     ServerFilesGenerator::deleteWebConfigFiles();
     ServerFilesGenerator::createWebConfigFiles();
     ServerFilesGenerator::deleteHtAccessFiles();
     ServerFilesGenerator::createHtAccessFiles();
 }