python310Packages.backports_csv: remove

we no longer need to backport to python2

pkgs/development/python-modules/backports_csv/default.nix

···
-{ lib, buildPythonPackage, fetchPypi, future }:
-
-buildPythonPackage rec {
-
-  pname = "backports.csv";
-  version = "1.0.7";
-
-  src = fetchPypi {
-    inherit pname version;
-    sha256 = "0vdx5jlhs91iizc8j8l8811nqprwvdx39pgkdc82w2qkfgzxyxqj";
-  };
-
-  propagatedBuildInputs = [ future ];
-
-  meta = with lib; {
-    description = "Backport of Python 3 csv module";
-    homepage = "https://github.com/ryanhiebert";
-    license = licenses.psfl;
-  };
-}

pkgs/development/python-modules/cli-helpers/default.nix

···
 , buildPythonPackage
 , fetchPypi
 , pythonOlder
-, backports_csv
 , configobj
 , mock
 , pytestCheckHook

pkgs/top-level/python-aliases.nix

···
   asyncio-nats-client = nats-py; # added 2022-02-08
   awkward0 = throw "awkward0 has been removed, use awkward instead"; # added 2022-12-13
   Babel = babel; # added 2022-05-06
+  backports_csv = throw "backports_csv has been removed, since we no longer need to backport to python2"; # added 2023-07-28
   bedup = throw "bedup was removed because it was broken and abandoned upstream"; # added 2023-02-04
   bitcoin-price-api = throw "bitcoin-price-api has been removed, it was using setuptools 2to3 translation feautre, which has been removed in setuptools 58"; # added 2022-02-15
   BlinkStick = blinkstick; # added 2023-02-19

pkgs/top-level/python-packages.nix

···
 
   backports-cached-property = callPackage ../development/python-modules/backports-cached-property { };
 
-  backports_csv = callPackage ../development/python-modules/backports_csv { };
-
   backports-datetime-fromisoformat = callPackage ../development/python-modules/backports-datetime-fromisoformat { };
 
   backports-entry-points-selectable = callPackage ../development/python-modules/backports-entry-points-selectable { };