Summary:Unfortunately the 'screen' option in the `UIManager.takeSnapshot` API appears to work only on the iOS simulator, not on an actual device.
This diff removes the 'screen' option until a solution can be found that works on the device.
(Taking a snapshot of the window still works fine - it just won't include the status bar, etc.)
Reviewed By: javache
Differential Revision: D2971091
fb-gh-sync-id: 026b9d4eb2f59f686f58c18a16381ff325df612b
shipit-source-id: 026b9d4eb2f59f686f58c18a16381ff325df612b