attic: uninit

Attic is currently broken on master.
The Attic git repo has not been updated since May 2015.
Arch Linux also does not have an Attic package anymore.
Borg should be able to read Attic backups using
http://borgbackup.readthedocs.io/en/stable/usage/upgrade.html#attic-and-borg-0-xx-to-borg-1-x.

pkgs/tools/backup/attic/default.nix

@@ -1,56 +0,0 @@
-{ stdenv, fetchzip, python3Packages, openssl, acl, fetchurl, pkgconfig, fuse, attr, which }:
-
-let
-
-  # Old version needed for attic (backup program) due to breaking change in
-  # llfuse >= 0.42.
-  llfuse-0-41 = python3Packages.buildPythonPackage rec {
-    name = "llfuse-0.41.1";
-    src = fetchurl {
-      url = "mirror://pypi/l/llfuse/${name}.tar.bz2";
-      sha256 = "1imlqw9b73086y97izr036f58pgc5akv4ihc2rrf8j5h75jbrlaa";
-    };
-  nativeBuildInputs = [ pkgconfig ];
-    buildInputs = with python3Packages; [ pytest fuse attr which ];
-    propagatedBuildInputs = with python3Packages; [ contextlib2 ];
-    checkPhase = ''
-      py.test
-    '';
-    # FileNotFoundError: [Errno 2] No such file or directory: '/usr/bin'
-    doCheck = false;
-    meta = {
-      description = "Python bindings for the low-level FUSE API";
-      homepage = https://code.google.com/p/python-llfuse/;
-      license = stdenv.lib.licenses.lgpl2Plus;
-      platforms = stdenv.lib.platforms.unix;
-      maintainers = with stdenv.lib.maintainers; [ bjornfor ];
-    };
-  };
-
-in python3Packages.buildPythonApplication rec {
-  name = "attic-${version}";
-  version = "0.16";
-  namePrefix = "";
-
-  src = fetchzip {
-    name = "${name}-src";
-    url = "https://github.com/jborg/attic/archive/${version}.tar.gz";
-    sha256 = "008566hhsd3ck70ql0fdn4vaqjfcnf493gwd49d6294f8r7qn06z";
-  };
-
-  propagatedBuildInputs = with python3Packages;
-    [ cython msgpack openssl acl llfuse-0-41 ];
-
-  preConfigure = ''
-    export ATTIC_OPENSSL_PREFIX="${openssl.dev}"
-    substituteInPlace setup.py --replace "version=versioneer.get_version()" "version='${version}'"
-  '';
-
-  meta = with stdenv.lib; {
-    description = "A deduplicating backup program";
-    homepage = https://attic-backup.org;
-    license = licenses.bsd3;
-    maintainers = [ maintainers.wscott ];
-    platforms = platforms.unix; # Darwin and FreeBSD mentioned on homepage
-  };
-}