pythonPackages.dogpile-core: remove

Broken on python2.7 and 3.7+.

Upstream notes (2016-05-30):

> The dogpile.core package has been rolled into dogpile.cache
> directly. dogpile.core as a separate package is effectively EOL.

https://bitbucket.org/zzzeek/dogpile.core/src/master/

pkgs/development/python-modules/dogpile-core/default.nix

@@ -1,23 +0,0 @@
-{ lib, buildPythonPackage, fetchPypi }:
-
-buildPythonPackage rec {
-  pname = "dogpile-core";
-  version = "0.4.1";
-
-  src = fetchPypi {
-    pname = "dogpile.core";
-    inherit version;
-    sha256 = "0xpdvg4kr1isfkrh1rfsh7za4q5a5s6l2kf9wpvndbwf3aqjyrdy";
-  };
-
-  doCheck = false;
-
-  pythonImportsCheck = [ "dogpile.core" ];
-
-  meta = with lib; {
-    description = "A 'dogpile' lock, typically used as a component of a larger caching solution";
-    homepage = "https://bitbucket.org/zzzeek/dogpile.core";
-    license = licenses.bsd3;
-    maintainers = with maintainers; [ ];
-  };
-}

pkgs/top-level/python-aliases.nix

@@ -48,6 +48,7 @@ mapAliases ({
   django_taggit = django-taggit; # added 2021-10-11
   dns = dnspython; # added 2017-12-10
   dogpile_cache = dogpile-cache; # added 2021-10-28
+  dogpile-core = throw "dogpile-core is no longer maintained, use dogpile-cache instead"; # added 2021-11-20
   faulthandler = throw "faulthandler is built into ${python.executable}"; # added 2021-07-12
   gitdb2 = throw "gitdb2 has been deprecated, use gitdb instead."; # added 2020-03-14
   glances = throw "glances has moved to pkgs.glances"; # added 2020-20-28

pkgs/top-level/python-packages.nix

@@ -2293,8 +2293,6 @@ in {
 
   dogpile-cache = callPackage ../development/python-modules/dogpile-cache { };
 
-  dogpile-core = callPackage ../development/python-modules/dogpile-core { };
-
   dogtail = callPackage ../development/python-modules/dogtail { };
 
   doit = callPackage ../development/python-modules/doit { };