Toolbar::deleteButtons

public function deleteButtons(Closure $closure)
{
	foreach ($this->buttons as $i => $button)
	{
		if ($closure($button, ButtonLocation::RIGHT) === true)
		{
			unset($this->buttons[$i]);
		}
	}

	foreach ($this->filterButtons as $i => $button)
	{
		if ($closure($button, ButtonLocation::AFTER_FILTER) === true)
		{
			unset($this->filterButtons[$i]);
		}
	}
}