Summary:
1/4 of https://github.com/facebook/react-native/issues/28103
## Changelog
[JavaScript][Removed] - Remove leftover `Incremental` component.
Pull Request resolved: https://github.com/facebook/react-native/pull/28107
Test Plan: In RNTester `Incremental` component is no longer used so I modified one of existing examples to use it.
Reviewed By: rickhanlonii
Differential Revision: D19960536
Pulled By: TheSavior
fbshipit-source-id: 791bda7138ac23916957577ed5f5c465c5e96299