Delete registerGeneratedViewConfig API
Delete registerGeneratedViewConfig API

Summary:
This diff deletes the registerGeneratedViewConfig API that is not used anymore.
This API was likely ONLY used internally at facebook, that's why I'm not deprecating it.

changelog: [Delete] Delete registerGeneratedViewConfig API

Reviewed By: fkgozali

Differential Revision: D28207558

fbshipit-source-id: 8598591e7ba1a7b001c87cb8728f2c599b1bbf63

facebook/react-native,janicduplessis/react-native,janicduplessis/react-native,myntra/react-native,myntra/react-native,janicduplessis/react-native,javache/react-native,janicduplessis/react-native,myntra/react-native,janicduplessis/react-native,myntra/react-native,javache/react-native,facebook/react-native,myntra/react-native,facebook/react-native,myntra/react-native,javache/react-native,pandiaraj44/react-native,facebook/react-native,facebook/react-native,facebook/react-native,pandiaraj44/react-native,javache/react-native,janicduplessis/react-native,javache/react-native,facebook/react-native,pandiaraj44/react-native,janicduplessis/react-native,pandiaraj44/react-native,pandiaraj44/react-native,myntra/react-native,javache/react-native,pandiaraj44/react-native,myntra/react-native,janicduplessis/react-native,facebook/react-native,facebook/react-native,pandiaraj44/react-native,javache/react-native,javache/react-native,javache/react-native,myntra/react-native,pandiaraj44/react-native