Delete guile-2-test.nix, grep says its dead code

pkgs/top-level/guile-2-test.nix

@@ -1,84 +0,0 @@
-/* A Hydra jobset to test Guile-using applications and libraries with the
-   Guile 2.x pre-releases.
-
-   -- ludo@gnu.org  */
-
-let
-  allPackages = import ../..;
-
-  pkgsFun = { system ? builtins.currentSystem }:
-    allPackages {
-      inherit system;
-      config.packageOverrides = pkgs: {
-        guile = pkgs.guile_2_0;
-      };
-    };
-
-  pkgs = pkgsFun {};
-
-  toJob = x: if builtins.isAttrs x then x else
-    { type = "job"; systems = x; schedulingPriority = 10; };
-
-  /* Perform a job on the given set of platforms.  The function `f' is
-     called by Hydra for each platform, and should return some job
-     to build on that platform.  `f' is passed the Nixpkgs collection
-     for the platform in question. */
-  testOn = systems: f: {system ? builtins.currentSystem}:
-    if pkgs.lib.elem system systems
-    then f (pkgsFun {inherit system;})
-    else {};
-
-  /* Map an attribute of the form `foo = [platforms...]'  to `testOn
-     [platforms...] (pkgs: pkgs.foo)'. */
-  mapTestOn = pkgs.lib.mapAttrsRecursiveCond
-    (as: !(as ? type && as.type == "job"))
-    (path: value:
-      let
-        job = toJob value;
-        getPkg = pkgs:
-          pkgs.lib.addMetaAttrs { schedulingPriority = toString job.schedulingPriority; }
-          (pkgs.lib.getAttrFromPath path pkgs);
-      in testOn job.systems getPkg);
-
-  inherit (pkgs.lib.platforms) linux darwin cygwin allBut all;
-
-in (mapTestOn {
-  /* The package list below was obtained with:
-
-     cat top-level/all-packages.nix                             \
-     | grep -B3 'guile[^=]*$'                                   \
-     | grep '^[[:blank:]]*[a-zA-Z0-9_]\+[[:blank:]]*='          \
-     | sed -es'/^[[:blank:]]*\(.\+\)[[:blank:]]*=.*$/\1= linux;/g'
-
-     with some minor edits.
-   */
-
-  guile = linux;
-
-  autogen = linux;
-  lsh = linux;
-  mailutils = linux;
-  mcron = linux;
-  texmacs = linux;
-  guileCairo = linux;
-  guileGnome = linux;
-  guile_lib = linux;
-  guileLint = linux;
-  guile_ncurses = linux;
-  gwrap = linux;
-  swig = linux;
-  gnutls = linux;
-  slibGuile = linux;
-  dico = linux;
-  trackballs = linux;
-  beast = linux;
-  elinks = linux;
-  gnucash = linux;
-  gnunet = linux;
-  snd = linux;
-  ballAndPaddle = linux;
-  drgeo = linux;
-  lilypond = linux;
-  liquidwar = linux;
-  freetalk = linux;
-})