Params::remove

public function remove(string $paramName = ''): self
{
	if (empty($paramName))
	{
		foreach ($this as $paramName => $param)
		{
			unset($this[$paramName]);
		}
		$this->isLoaded = true;
	}
	else
	{
		unset($this[$paramName]);
	}

	return $this;
}