Summary:
Pull Request resolved: https://github.com/facebookresearch/faiss/pull/3967
This diff just finds and replaces duplicate license headers.
See the errors for "duplicate-license-header" in D64429711 under "linter-coverage-verification" signal.
Reviewed By: asadoughi
Differential Revision: D64484123
fbshipit-source-id: 906e8baa3a11a3bbee174a03dcc27681f9fd78c2