title: Hide variable product dropdown that has a unique variation selected by default in Woocommerce
body: <p>I have a unique issue. I am using a plugin where they are not able to support the request.  I need to split out variations into separate items, but if I copy and paste and turn them into a simple product, then I can't sync the count for the product to track inventory stock. As a workaround I needed to be able to disable the variations I do not need, keeping only the one that I do need.  But here is where I am having trouble.  If I have one variation enabled, then I do not want to show the dropdown, and instead want it to look like a simple product on the UI.  I tried everything and cannot get it to work. </p>
  
  <p>I even tried using</p>
  
  <pre><code>add_filter( 'woocommerce_hide_invisible_variations', '__return_true', 10, 3 );
  </code></pre>
  
  <p>with no success as they are visible and not hidden even though the counts are 0, the price is 0, and the item is disabled.  </p>
  
  <p>How can I show the product page with no drop-down?  Take it one step further; I delete all variations except the one that I need to keep.  I need to keep it in variations mode due to the plugin that syncs. How do I display it without any dropdowns showing?  </p>
  
  <p>Example logic:</p>
  
  <p>If product type is a variation and enabled count == 1 then special ui display, else normal.</p>
  
  <p>Thanks.</p>