title: How to remove space of hidden UIImage?
body: <p>I'm stuck that I don't know how to remove spacing of hidden UIImage. Purpose is If flag is true, UIImage will be displayed and if flag is false, UIImage is hidden but space of this hidden image is still there.</p>
  
  <p>I'm using Auto Layout.</p>
  
  <p><img src="https://i.stack.imgur.com/0vuNs.png" alt="enter image description here"></p>