Revert #178290: nixos/virtualisation: add option

[vcunat]

...for explicitly named network interfaces

This reverts commit 6ae3e76. (and evaluation fixups 08d26bb 7aed90a)
Some of the tests fail or time out after the merge.

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandbox = true set in nix.conf? (See Nix manual)
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 23.05 Release Notes (or backporting 22.11 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
  • (Release notes changes) Ran nixos/doc/manual/md-to-db.sh to update generated release notes
• Fits CONTRIBUTING.md.

[vcunat]

I tried some of the tests locally, but OfBorg can also:
@ofborg test networking.scripted.sit networking.networkd.privacy

[vcunat]

And of course, if you have an actual fix... I can't look into what's wrong.

[Atemu]

cc @andrew-hoff

[cole-h]

Confirmed, I get a time-out with nix-build -A nixosTests.networking.scripted.sit prior to this change, and it completes almost immediately after this change. Let's get this in so nixos-unstable can update again :D

[Atemu]

Could someone trigger a trunk-combined eval now that this is in?