title: Remove "Calculate Shipping" Button if item is using flat rate (Woocommerce)
body: <p>We have some items in our store that use flat rate shipping. When these items are in the cart, we don't want the "Calculate Shipping" button to show. However, if there are items in the cart that need to calculate, we want it to show.</p>
  
  <p>Is there a way to remove this button using a conditional? </p>
  
  <p>I was trying to loop through the cart items and test for a shipping class in the cart, but it's not working. It ended up removing the shipping cost and keeping the calculate shipping button.</p>