pythonPackages.ipython: remove python2 frozen package

promptoolkit no longer supports python2, instead of freezeing
the package, decided to remove python2 support.

pkgs/development/python-modules/ipython/5.nix

@@ -1,62 +0,0 @@
-{ lib
-, stdenv
-, buildPythonPackage
-, fetchPypi
-# Build dependencies
-, glibcLocales
-# Test dependencies
-, nose
-, pygments
-, testpath
-, isPy27
-, mock
-# Runtime dependencies
-, backports_shutil_get_terminal_size
-, decorator
-, pathlib2
-, pickleshare
-, requests
-, simplegeneric
-, traitlets
-, prompt_toolkit
-, pexpect
-, appnope
-}:
-
-buildPythonPackage rec {
-  pname = "ipython";
-  version = "5.8.0";
-
-  src = fetchPypi {
-    inherit pname version;
-    sha256 = "4bac649857611baaaf76bc82c173aa542f7486446c335fe1a6c05d0d491c8906";
-  };
-
-  prePatch = stdenv.lib.optionalString stdenv.isDarwin ''
-    substituteInPlace setup.py --replace "'gnureadline'" " "
-  '';
-
-  buildInputs = [ glibcLocales ];
-
-  checkInputs = [ nose pygments testpath ] ++ lib.optional isPy27 mock;
-
-  propagatedBuildInputs = [
-    backports_shutil_get_terminal_size decorator pickleshare prompt_toolkit
-    simplegeneric traitlets requests pathlib2 pexpect
-  ] ++ lib.optionals stdenv.isDarwin [ appnope ];
-
-  LC_ALL="en_US.UTF-8";
-
-  doCheck = false; # Circular dependency with ipykernel
-
-  checkPhase = ''
-    nosetests
-  '';
-
-  meta = {
-    description = "IPython: Productive Interactive Computing";
-    homepage = http://ipython.org/;
-    license = lib.licenses.bsd3;
-    maintainers = with lib.maintainers; [ bjornfor orivej lnl7 ];
-  };
-}

pkgs/top-level/python-packages.nix

@@ -3523,10 +3523,7 @@ in {
 
   ipyparallel = callPackage ../development/python-modules/ipyparallel { };
 
-  ipython = if pythonOlder "3.5" then
+  ipython = callPackage ../development/python-modules/ipython { };
-      callPackage ../development/python-modules/ipython/5.nix { }
-    else
-      callPackage ../development/python-modules/ipython { };
 
   ipython_genutils = callPackage ../development/python-modules/ipython_genutils { };