Delete natural_language_processing (#2317)
* Delete natural_language_processing
This file is useless.
* updating DIRECTORY.md
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com> C
Christian Clauss committed
8817a3e66766f48237cd0ca78bc383894af45329
Parent: 2eca716
Committed by GitHub <noreply@github.com>
on 8/19/2020, 7:53:56 PM