title: Remove underline on UIButton in iOS 7
body: <p>Any one know how to remove the <code>UIButton</code> underline that appears because of Accessibility?</p>
  
  <p>(I know it's because the user turned on "Button Shapes")</p>
  
  <p><img src="https://i.stack.imgur.com/VBLs2.png" alt="enter image description here"> </p>
  
  <p><img src="https://i.stack.imgur.com/HYtF5.png" alt="enter image description here"></p>
  
  <p>How can I remove that programmatically, or by setting some property in Xcode?</p>