- Remove leftover Incremental component (#28107)

Summary:
1/4 of #28103

## Changelog

[JavaScript][Removed] - Remove leftover `Incremental` component.
Pull Request resolved: #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