Eliminating these things make the code much more understandable. See alsoadcbe530a9/config-linux.md (default-devices)df25eddce6/libcontainer/specconv/spec_linux.go (L454)Signed-off-by: Akihiro Suda <suda.kyoto@gmail.com> Upstream-commit: b397f978c60d8142cfa679030f01ba00ecc5e976 Component: engine