[Swan-commit] Changes to ref refs/heads/main

[Andrew Cagney]

New commits:
commit f82a3c731bcaaa8b8cfd748de6840fb7e62b6803
Author: Andrew Cagney <cagney at gnu.org>
Date:   Thu Oct 15 14:01:40 2020 -0400

    building: delete unused mk/subdirs.mk