Remove menu dropdown-toggle from children

[J_Szwarga]

Rookie Question Alert:

Attached is my piece of code from my _main.php.

What do I need to do in this section of my code to remove the dropdown-toggle from the grandchildren of "Home" in my menu?

I don't want to remove the toggles from Home's children, but their children I do. 

if($child->numChildren > 0 && $child->url <> "/"){

        $class .= " dropdown-toggle ";

    }

    if($page == $child){

        $class .= " active ";

    }

    elseif ($page->parents->has($child) && $child->url <> "/") {

        $class .= " active ";

    }