title: Missing Debug JS Remotely option in Developer Menu
body: <p>In order to use React Native Debugger, I don't see the option 'Debug JS Remotely' when I open the Developer Menu both on my android simulator and my physical device, using expo. Tried both scenarios and no option for Debug JS Remotely... </p>
  
  <p>(I originally wanted to use my external device with React Native Debugger and I can't find the setupDevtools.js file at node_modules/react-native/Libraries/Core/Devtools/setupDevtools.js in order to update this file for use.  I don't know if these two might be related, but also wanted to share) </p>
  
  <p>Am I missing something?  Thank you...</p>