Fixed remove duplicate (#2470)

* fixed remove duplicate

* fixup! Format Python code with psf/black push

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>

Du Yuanchao committed 5y ago

3a275caf0122474e42f9ac68e57618607bde3b96

Parent: 902fe1c

Committed by GitHub <noreply@github.com> on 9/24/2020, 11:14:52 AM