Remove nixops unstable expression, until we reintroduce it again. Currently it is not referenced, as nixopsUnstable = nixops.

pkgs/tools/package-management/nixops/unstable.nix

@@ -1,48 +0,0 @@
-{ lib, pythonPackages, fetchgit, libxslt, docbook5_xsl, openssh }:
-
-pythonPackages.buildPythonPackage rec {
-  name = "nixops-1.3pre-cefcd9ba";
-  namePrefix = "";
-
-  src = fetchgit {
-    url = https://github.com/NixOS/nixops;
-    rev = "9a05ebc332701247fa99fbf6d1215d48e08f3edd";
-    sha256 = "17vxr51wpdd5dnasiaafga3a6ddhxyrwgr0yllczxj6bq0n5skp2";
-  };
-
-  buildInputs = [ /* libxslt */ pythonPackages.nose pythonPackages.coverage ];
-
-  propagatedBuildInputs =
-    [ pythonPackages.prettytable
-      pythonPackages.boto
-      pythonPackages.hetzner
-      pythonPackages.libcloud
-      pythonPackages.sqlite3
-    ];
-
-  doCheck = true;
-
-  postInstall =
-    ''
-      # Backward compatibility symlink.
-      ln -s nixops $out/bin/charon
-
-      # Documentation build is currently broken. Re-try with newer version.
-      : make -C doc/manual install nixops.1 docbookxsl=${docbook5_xsl}/xml/xsl/docbook \
-        docdir=$out/share/doc/nixops mandir=$out/share/man
-
-      mkdir -p $out/share/nix/nixops
-      cp -av "nix/"* $out/share/nix/nixops
-
-      # Add openssh to nixops' PATH. On some platforms, e.g. CentOS and RHEL
-      # the version of openssh is causing errors when have big networks (40+)
-      wrapProgram $out/bin/nixops --prefix PATH : "${openssh}/bin"
-    '';
-
-  meta = {
-    homepage = https://github.com/NixOS/nixops;
-    description = "NixOS cloud provisioning and deployment tool";
-    maintainers = [ lib.maintainers.tv ];
-    platforms = lib.platforms.unix;
-  };
-}