Adldap\Models\Model::deleteAttribute PHP Method

    public function deleteAttribute($attribute)
    {
        // We need to pass in an empty array as the value
        // for the attribute so AD knows to remove it.
        if ($this->exists && $this->query->getConnection()->modDelete($this->getDn(), [$attribute => []])) {
            // If the models attribute was successfully deleted, we'll
            // resynchronize the models raw attributes.
            $this->syncRaw();
            return true;
        }
        return false;
    }