public function unregister(array $page_templates)
    {
        $unregisterConfig = $this->config->getSubConfig(self::UNREGISTER);

        return array_diff_key(
            $page_templates,
            array_flip(
                $unregisterConfig->getArrayCopy()
            )
        );
    }
public function unregister(array $page_templates)
    {
        $unregisterConfig = $this->config->getSubConfig(self::UNREGISTER);

        return array_diff_key(
            $page_templates,
            array_flip(
                $unregisterConfig->getArrayCopy()
            )
        );
    }
public function unregister ( array $ page_templates ) { $ unregisterConfig = $ this -> config -> getSubConfig ( self :: UNREGISTER ) ; return array_diff_key ( $ page_templates , array_flip ( $ unregisterConfig -> getArrayCopy ( ) ) ) ; }
Unregister page templates for given keys.

@param array $image_size_item Keys.
Unregister page templates for given keys .