Remove bittornado

Package is broken. Won't work with wxPython30, and wheel produced with
buildPythonPackage cannot be installed either.

pkgs/tools/networking/p2p/bit-tornado/default.nix

@@ -1,24 +0,0 @@
-{ stdenv,fetchurl,python, wxPython, makeWrapper }:
-stdenv.mkDerivation {
-  name = "bit-tornado-0.3.18";
-
-  src = fetchurl {
-    url = http://download2.bittornado.com/download/BitTornado-0.3.18.tar.gz;
-    sha256 = "1q6rapidnizy8wawasirgyjl9s4lrm7mm740mc5q5sdjyl5svrnr";
-  };
-
-  buildInputs = [ python wxPython makeWrapper ];
-
-  buildPhase = '' '';
-  installPhase = ''
-    python setup.py install --prefix=$out ;
-    for i in $(cd $out/bin && ls); do
-        wrapProgram $out/bin/$i \
-            --prefix PYTHONPATH : "$(toPythonPath $out):$PYTHONPATH" 
-    done
-  '';
-
-  meta = {
-    description = "Bittorrent client with IPv6 support";
-  };
-}

pkgs/top-level/all-packages.nix

@@ -933,8 +933,6 @@ in
     inherit (strategoPackages016) strategoxt sdf;
   };
 
-  bittornado = callPackage ../tools/networking/p2p/bit-tornado { };
-
   blueman = callPackage ../tools/bluetooth/blueman {
     inherit (gnome3) dconf gsettings_desktop_schemas;
     withPulseAudio = config.pulseaudio or true;