title: Remove top line from TabBar
body: <p>On iOS 10 this code doesn't work in order to remove the tabBar shadow line:</p>
  
  <pre><code>[[UITabBar appearance] setShadowImage:[[UIImage alloc] init]];
  </code></pre>
  
  <p>Somebody knows, what must I do to remove it?</p>
  
  <p>On <code>iOS 9.3</code> with this two lines the line is removed, but <code>iOS 10</code> ignores <code>setShadowImage</code> command.</p>