skype4pidgin: remove

It hasn't worked for years, since the old skype for linux was retired.

pkgs/applications/networking/instant-messengers/pidgin-plugins/skype4pidgin/default.nix

···
-{ lib, stdenv, fetchurl, pkg-config, pidgin, libnotify, gdk-pixbuf, glib, dbus
-, dbus-glib }:
-
-stdenv.mkDerivation rec {
-  name = "skype4pidgin-novas0x2a-20120411-6c53f7c48f";
-  src = fetchurl {
-    url = "https://github.com/novas0x2a/skype4pidgin/tarball/6c53f7c48f";
-    name = "${name}.tar.gz";
-    sha256 = "116jfh5ravaixivqx4a4bz0lbb9c49d5r83nwmripja56zdbpgr0";
-  };
-
-  NIX_CFLAGS_COMPILE = "-I${libnotify}/include/libnotify";
-
-  patchPhase = ''
-    sed -i -e 's/ [^ ]*-gcc/ gcc/' -e 's/-march[^ ]*//' \
-        -e 's/GLIB_CFLAGS =.*/GLIB_CFLAGS=`pkg-config --cflags glib-2.0 gdk-pixbuf-2.0 libnotify purple dbus-glib-1`/' Makefile
-    pkg-config --cflags glib-2.0 gdk-pixbuf-2.0 libnotify
-  '';
-
-  buildPhase  = "make libskype.so libskype_dbus.so";
-
-  installPhase = ''
-    mkdir -p $out/pixmaps/pidgin/protocols/{16,22,48} $out/bin $out/lib/pidgin
-    cp icons/16/skypeout.png $out/pixmaps/pidgin/protocols/16
-    cp icons/22/skypeout.png $out/pixmaps/pidgin/protocols/22
-    cp icons/48/skypeout.png $out/pixmaps/pidgin/protocols/48
-    cp libskype.so libskype_dbus.so $out/lib/pidgin
-  '';
-
-  postInstall = "ln -s \$out/lib/pidgin \$out/share/pidgin-otr";
-
-  nativeBuildInputs = [ pkg-config ];
-  buildInputs = [ pidgin libnotify gdk-pixbuf glib dbus dbus-glib ];
-
-  meta = {
-    homepage = "https://github.com/novas0x2a/skype4pidgin";
-    license = lib.licenses.gpl3Plus;
-    description = "Plugin to use a running skype account through pidgin";
-    platforms = lib.platforms.linux;
-  };
-}

pkgs/top-level/aliases.nix

···
   sky = throw "sky has been removed from nixpkgs (2020-09-16)";
   skype = skypeforlinux; # added 2017-07-27
   skype_call_recorder = throw "skype_call_recorder has been removed from nixpkgs, because it stopped working when classic Skype was retired."; # added 2020-10-31
+  skype4pidgin = throw "skype4pidgin has been remove from nixpkgs, because it stopped working when classic Skype was retired."; # added 2021-07-14
   skydive = throw "skydive has been removed from nixpkgs (2019-09-10)";
   slack-dark = slack; # added 2020-03-27
   slic3r-prusa3d = prusa-slicer; # added 2019-05-21

pkgs/top-level/all-packages.nix

···
 
   skypeforlinux = callPackage ../applications/networking/instant-messengers/skypeforlinux { };
 
-  skype4pidgin = callPackage ../applications/networking/instant-messengers/pidgin-plugins/skype4pidgin { };
-
   SkypeExport = callPackage ../applications/networking/instant-messengers/SkypeExport { };
 
   slmenu = callPackage ../applications/misc/slmenu {};