Use libXNVCtrl purely

[aidalgol]

Description of changes

libXNVCtrl is not tied to the Nvidia driver version, so we don't need to apply it via the NixOS option hardware.opengl.extraPackages, and can instead let consumers of the library use it via the derivation directly.

Closes #314289.

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• 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/)
• 24.11 Release Notes (or backporting 23.11 and 24.05 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.

---

Add a 👍 reaction to pull requests you find important.

[kira-bruneau]

Thanks @aidalgol! The change looks good to me - but I don't have an nvidia device to test this on right now.

[Kiskae]

Makes sense, it's an X extension with embedded version support, the client should check that the corresponding server has the support it requires.