pkgs: remove volantes-cursors

It has been packaged upstream.

pkgs/default.nix

@@ -36,8 +36,6 @@ pkgs.lib.makeScope pkgs.newScope (pkgs: {
 
   vimix-cursors = pkgs.callPackage ./vimix-cursors { };
 
-  volantes-cursors = pkgs.callPackage ./volantes-cursors { };
-
   wifi-qr = pkgs.callPackage ./wifi-qr { };
 
   zsh-done = pkgs.callPackage ./zsh-done { };

pkgs/volantes-cursors/default.nix

@@ -1,44 +0,0 @@
-{ lib, fetchFromGitHub, inkscape, stdenvNoCC, xcursorgen }:
-stdenvNoCC.mkDerivation rec {
-  pname = "volantes-cursors";
-  version = "unstable-2020-06-06";
-
-  src = fetchFromGitHub {
-    owner = "varlesh";
-    repo = pname;
-    rev = "d1d290ff42cc4fa643716551bd0b02582b90fd2f";
-    hash = "sha256-irMN/enoo90nYLfvSOScZoYdvhZKvqqp+grZB2BQD9o=";
-  };
-
-  nativeBuildInputs = [
-    inkscape
-    xcursorgen
-  ];
-
-  postPatch = ''
-    patchShebangs .
-    # The script tries to build in its source directory...
-    substituteInPlace build.sh --replace \
-      ': "''${BUILD_DIR:="$SCRIPT_DIR"/build}"' \
-      "BUILD_DIR=$(pwd)/build"
-    substituteInPlace build.sh --replace \
-      ': "''${OUT_DIR:="$SCRIPT_DIR"/dist}"' \
-      "OUT_DIR=$(pwd)/dist"
-  '';
-
-  buildPhase = ''
-    HOME="$NIX_BUILD_ROOT" ./build.sh
-  '';
-
-  installPhase = ''
-    make install PREFIX= DESTDIR=$out/
-  '';
-
-  meta = with lib; {
-    description = "Classic cursor with a flying style";
-    homepage = "https://github.com/varlesh/volantes-cursors";
-    license = licenses.gpl2Only;
-    maintainers = with maintainers; [ ambroisie ];
-    platforms = platforms.linux;
-  };
-}