title: Remove icon from searchview in ActionBar
body: <p>I am using action bar support v7 library. When I expand search view I get look like this.</p>
  <p><img src="https://i.stack.imgur.com/Y73nK.png" alt="enter image description here" /></p>
  <p><strong>I dont want this search icon on left.</strong> Instead I want to place it in hint like image below.</p>
  <p><img src="https://i.stack.imgur.com/iaf4H.png" alt="enter image description here" /></p>
  <p>I want to do this programmatically. How can I achieve this?</p>
  <p>Thanks.</p>