This reverts commit 7ac1ef05fa162d8e3c35925034df72288df77c8b. One of a few reverts needed to unbreak networkmanager NixOS service since the multiple-output split (to save 3 MiB of closure size).
*** NixOS *** NixOS is a Linux distribution based on the purely functional package management system Nix. More information can be found at http://nixos.org/nixos and in the manual in doc/manual.