nixos/tests/printing: unmaintain

I won't be a good maintainer of printing tests, as I don't print.
I don't know why I was made one in #8163, in the first place.

Changed files
+1 -1
nixos
tests
+1 -1
nixos/tests/printing.nix
···
import ./make-test.nix ({pkgs, ... }: {
name = "printing";
meta = with pkgs.stdenv.lib.maintainers; {
-
maintainers = [ iElectric eelco chaoflow jgeerds vcunat ];
+
maintainers = [ iElectric eelco chaoflow jgeerds ];
};
nodes = {