Summary:
**Motivation**
This finishes the job of #11817, removing the previously deprecated method. See https://github.com/facebook/react-native/issues/11736 for more context.
**Test plan**
There were no tests for this method, and I searched the whole project to make sure we weren't relying on it anywhere.
Closes https://github.com/facebook/react-native/pull/11854
Differential Revision: D4421671
Pulled By: javache
fbshipit-source-id: 67e0db8d3c594ad3ccd6ccdae08f8ce49ddb8a34
302d42da7f