Summary:
A temporary React Native compatibility fix was added to React in commit [bba0d99](bba0d992d8) and subsequently removed in commit [e612826](e612826650). I noticed this while testing the React Native fiber renderer and attempting to use `Systrace`.
This commit updates React Native to no longer rely on the deprecated method and module.
PS I'm not sure if I should also update `ReactDebugTool` with this commit or wait for a subsequent sync script to update it. I haven't committed to this repo before. Please advise. 😄
Closes https://github.com/facebook/react-native/pull/11970
Differential Revision: D4446219
Pulled By: bvaughn
fbshipit-source-id: f286b8a4d00cdcbfbb49f52b9f1db5231d453f4c