title: Hide some buttons in Woocommerce Admin edit order pages
body: <p>I am going crazy with this, I've been searching all day for a solution for this. I know it should be possible with the <code>display: none;</code> css work around, but I just cant get it to work.</p>
  
  <p><strong>I am trying to remove the "Add Product(s)", "Add fee" and "Add shipping" buttons.</strong></p>
  
  <p><a href="https://i.stack.imgur.com/fyrLp.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/fyrLp.png" alt="enter image description here"></a></p>