Remove the `ld` override for macOS

[toyboot4e]

I expect upstream updates will allow us to drop this override:

plover-flake/flake.nix

Lines 40 to 75 in 1a36846

	# [HACK]
	# Override cctools `ld` with LLVM's `lld` to avoid Qt 6.11 modules with naive Darwin plugins such as WebKit.
	# We patch `python.pkgs.qt6` rather than `pkgs.qt6`, because `overrideScope` on the latter drops its `.override`,
	# which `python-packages.nix` calls.
	qtLldDarwinOverlay =
	final: prev:
	lib.optionalAttrs prev.stdenv.hostPlatform.isDarwin {
	pythonPackagesExtensions = prev.pythonPackagesExtensions ++ [
	(
	pyFinal: pyPrev:
	let
	withLld =
	drv:
	drv.overrideAttrs (old: {
	nativeBuildInputs = (old.nativeBuildInputs or [ ]) ++ [ final.llvmPackages.lld ];
	env = (old.env or { }) // {
	NIX_CFLAGS_LINK = "-fuse-ld=lld";
	};
	});
	in
	{
	pyside6 = withLld pyPrev.pyside6;
	qt6 = pyPrev.qt6.overrideScope (
	_qtFinal: qtPrev:
	lib.genAttrs [
	"qtwebview"
	"qtspeech"
	"qtconnectivity"
	"qtpositioning"
	"qtlocation"
	] (name: withLld qtPrev.${name})
	);
	}
	)
	];
	};