Kraken\Environment\Loader\Loader::clearEnvironmentVariable PHP Method

    public function clearEnvironmentVariable($name)
    {
        if (strpos($name, 'INI_') === 0) {
            $normalized = str_replace('INI_', '', $name);
            $normalized = strtolower($normalized);
            $this->invoker->call('ini_restore', [$normalized]);
        }
        parent::clearEnvironmentVariable($name);
    }

 /**
  * @override
  * @inheritDoc
  */
 public function removeEnv($name)
 {
     $this->loader->clearEnvironmentVariable($name);
 }