Jarves\Admin\AppKernelModifier::remove PHP Method

    public function remove($string)
    {
        $this->script = substr($this->script, 0, $this->position) . substr($this->script, $this->position + (is_string($string) ? strlen($string) : $string));
        $this->position -= 1;
        $this->length -= is_string($string) ? strlen($string) : $string;
    }