`darwin.apple_sdk.frameworks` has been obsoleted and is no longer
required to be specified explicitly as per [Nixpkgs Reference
Manual](https://nixos.org/manual/nixpkgs/stable/#sec-darwin-legacy-frameworks).

@P1n3appl3 not sure what the process for updating Nix is, so lemme know
if this is desired/acceptable!

Release Notes:

- N/A