Hide sold out prices from product grids

product-grid-item.liquid

      <p class="price_wrapper">
        <span class="price{% if on_sale %} on-sale{% endif %}">
          {% if product.price_varies %}{{ 'products.general.from' | t }} {% endif %}
         {% unless sold_out %} <span class="money">{{ product.price | money }}</span> 
        </span> {% endunless %}
        {% if sold_out %}

        <em>{{ 'products.product.sold_out' | t }}</em>
        {% endif %}
        {% if on_sale %}
        <span class="compare-at">
          <span class="money">{{ product.compare_at_price | money }}</span>
        </span>
        {% endif %}
        {% if product.metafields.spr.reviews %}
          <br />
          <span class="shopify-product-reviews-badge" data-id="{{ product.id }}"></span>
        {% endif %}
      </p>
    </a>
  </div>
</div>