runCommandNoCC: fix ofborg status

[roberth]

The original pr was merged a bit too soon.

Removing the deprecation warning shouldn't be necessary, but for
now, we need to prioritize making ofborg green.

A proper fix consists of something like d6aafb3 but in ofborg's code.

Motivation for this change

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• 21.11 Release Notes (or backporting 21.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

[roberth]

It doesn't like that the status quo "does not evaluate cleanly" so I'll merge this without proper confirmation. This is a known issue with ofborg.