title: Android Studio 3.1 does not showing 'android' option under Tools menu
body: <p>I am using android studio 3.1 for some development.
  But Its does not showing <code>android</code> option under <code>Tools</code> menu. Whereas Android studio 3.0 doesn't have this problem.</p>
  
  <p>Here is the screenshot of android studio 3.1 Tools menu:</p>
  
  <p><a href="https://i.stack.imgur.com/aYfvQ.png" rel="noreferrer"><img src="https://i.stack.imgur.com/aYfvQ.png" alt="enter image description here"></a></p>
  
  <p>See missing the <code>android</code> option.
  I think this is some configuration related problem as it doesn't exist in android studio 3.0. Basically I need <code>Enable ADB Integration</code> option. Is there any way to show the option in Tools menu?</p>