python36Packages.ipython: remove

since python36 is no longer part of nixpkgs.

pkgs/development/python-modules/ipython/7.16.nix

@@ -1,69 +0,0 @@
-{ lib
-, stdenv
-, buildPythonPackage
-, fetchPypi
-, pythonOlder
-# Build dependencies
-, glibcLocales
-# Test dependencies
-, nose
-, pygments
-# Runtime dependencies
-, jedi
-, decorator
-, pickleshare
-, traitlets
-, prompt-toolkit
-, pexpect
-, appnope
-, backcall
-}:
-
-buildPythonPackage rec {
-  pname = "ipython";
-  version = "7.16.1";
-  disabled = pythonOlder "3.6";
-
-  src = fetchPypi {
-    inherit pname version;
-    sha256 = "9f4fcb31d3b2c533333893b9172264e4821c1ac91839500f31bd43f2c59b3ccf";
-  };
-
-  prePatch = lib.optionalString stdenv.isDarwin ''
-    substituteInPlace setup.py --replace "'gnureadline'" " "
-  '';
-
-  buildInputs = [ glibcLocales ];
-
-  checkInputs = [ nose pygments ];
-
-  propagatedBuildInputs = [
-    jedi
-    decorator
-    pickleshare
-    traitlets
-    prompt-toolkit
-    pygments
-    pexpect
-    backcall
-  ] ++ lib.optionals stdenv.isDarwin [appnope];
-
-  LC_ALL="en_US.UTF-8";
-
-  doCheck = false; # Circular dependency with ipykernel
-
-  checkPhase = ''
-    nosetests
-  '';
-
-  pythonImportsCheck = [
-    "IPython"
-  ];
-
-  meta = with lib; {
-    description = "IPython: Productive Interactive Computing";
-    homepage = "http://ipython.org/";
-    license = licenses.bsd3;
-    maintainers = with maintainers; [ bjornfor fridh ];
-  };
-}

pkgs/top-level/python-packages.nix

@@ -4002,10 +4002,7 @@ in {
 
   ipython_genutils = callPackage ../development/python-modules/ipython_genutils { };
 
-  ipython = if isPy36 then
+  ipython = callPackage ../development/python-modules/ipython { };
-    callPackage ../development/python-modules/ipython/7.16.nix { }
-  else
-    callPackage ../development/python-modules/ipython { };
 
   ipyvue = callPackage ../development/python-modules/ipyvue { };