New review comment by ndowens on void-packages repository

https://github.com/void-linux/void-packages/pull/26369#discussion_r523473881

Comment:
Seems it was possibly removed before due to containing just these:
./usr/share/doc/duplicity-0.8.17/README.md
./usr/share/doc/duplicity-0.8.17/README-TESTING.md
./usr/share/doc/duplicity-0.8.17/README-REPO.md
./usr/share/doc/duplicity-0.8.17/README-LOG.md
./usr/share/doc/duplicity-0.8.17/COPYING
./usr/share/doc/duplicity-0.8.17/CHANGELOG.md
./usr/share/doc/duplicity-0.8.17/AUTHORS

So sorta, IMO, worthless as it doesn't contain things just as manpages and other helpful docs.

P.S. Changed to rm -r