Hiding 'Default' drop-down in Reconfigured

product.liquid.html

<h1>
  {{ product.title }} 
  {% for variant in product.variants %} 
    {% if variant.available %}
    {% else %} 
      <span class="soldout"><em>{{ variant.title }}</em> is currently Sold Out! :(</span> 
    {% endif %} 
  {% endfor %}
</h1>
<!--product-block-->
<div class="product-block">
  <div class="visual-column">

    {% for image in product.images %}
      {% if forloop.first %}
        <a href="{{ image | product_img_url: 'large' }}" class="productimage" rel="lightbox-{{ product.handle }}" title="Pictures of {{product.title | escape }}">
          <img src="{{ image | product_img_url: 'large'}}" alt="{{product.title | escape }}" />
        </a>
      {% else %}
        {% if forloop.index == 2 %}
        <ul>
        {% endif %}
          <li>
            <a href="{{ image | product_img_url: 'large' }}" class="productimage-small" rel="lightbox-{{ product.handle }}" title="Pictures of {{product.title | escape }}">
              <img src="{{ image | product_img_url: 'small'}}" alt="{{product.title | escape }}" />
            </a>
          </li>
                {% if forloop.last %}
        </ul>
        {% endif %}
      {% endif %}
    {% endfor %}
  </div>
  <div class="user-column">
    {{ product.description }}
    
<form action="/cart/add" method="post" class="cartableProduct">

  <div id="product-variants">
    {% if product.variants.size == 1 %}
    <input type="hidden" name="id" value="{{ product.variants.first.id }}" />
    {% else %}     
    <fieldset>
          <select id="product-select" name='id'>
            {% for variant in product.variants %}
              <option value="{{ variant.id }}">{{ variant.title }} - {{ variant.price | money }}</option>
            {% endfor %}
          </select>
    </fieldset>
    {% endif %}
    <div id="price-field">{{ product.price | money_with_currency }}</div>
  </div>

    <input type="image" src="{{ 'add_to_shopping_bag.gif' | asset_url }}" name="add" value="Purchase" id="purchase" />
</form>

  </div>
</div>

{% unless product.variants.size == 1 %}

<script type="text/javascript">
// <![CDATA[  
var selectCallback = function(variant, selector) {
  if (variant && variant.available == true) {
    // selected a valid variant
    jQuery('#purchase').removeClass('disabled').removeAttr('disabled'); // remove unavailable class from add-to-cart button, and re-enable button
    jQuery('#price-field').html(Shopify.formatMoney(variant.price, "{{shop.money_with_currency_format}}"));  // update price field
  } else {
    // variant doesn't exist
    jQuery('#purchase').addClass('disabled').attr('disabled', 'disabled');      // set add-to-cart button to unavailable class and disable button
    var message = variant ? "Sold Out" : "Unavailable";    
    jQuery('#price-field').html(message); // update price-field message
  }
};

// initialize multi selector for product
jQuery(function() {
  new Shopify.OptionSelectors("product-select", { product: {{ product | json }}, onVariantSelected: selectCallback });
});
// ]]>
</script>

{% endunless %}