Commits
Sutou Kouhei authored 9386cfee2a0
ARROW-12128: [CI][Crossbow] Remove test-ubuntu-16.04-cpp job Ubuntu 16.04 is EOL in 2021-04. Closes #9845 from kou/ci-ubuntu-16.04-remove Authored-by: Sutou Kouhei <kou@clear-code.com> Signed-off-by: Sutou Kouhei <kou@clear-code.com>