pkgs: remove 'cgt-calc'

It's been merged upstream.

pkgs/cgt-calc/default.nix

@@ -1,47 +0,0 @@
-{ lib
-, fetchFromGitHub
-, python3Packages
-, withTeXLive ? true
-, texliveSmall
-}:
-python3Packages.buildPythonApplication rec {
-  pname = "cgt-calc";
-  version = "1.13.0";
-  pyproject = true;
-
-  src = fetchFromGitHub {
-    owner = "KapJI";
-    repo = "capital-gains-calculator";
-    rev = "v${version}";
-    hash = "sha256-y/Y05wG89nccXyxfjqazyPJhd8dOkfwRJre+Rzx97Hw=";
-  };
-
-  build-system = with python3Packages; [
-    poetry-core
-  ];
-
-  dependencies = with python3Packages; [
-    defusedxml
-    jinja2
-    pandas
-    requests
-    types-requests
-    yfinance
-  ];
-
-  makeWrapperArgs = lib.optionals withTeXLive [
-    "--prefix"
-    "PATH"
-    ":"
-    "${lib.getBin texliveSmall}/bin"
-  ];
-
-  meta = with lib; {
-    description = "UK capital gains tax calculator";
-    homepage = "https://github.com/KapJI/capital-gains-calculator";
-    license = with licenses; [ mit ];
-    mainProgram = "cgt-calc";
-    maintainers = with maintainers; [ ambroisie ];
-    platforms = platforms.unix;
-  };
-}

pkgs/default.nix

@@ -2,8 +2,6 @@
 pkgs.lib.makeScope pkgs.newScope (pkgs: {
   bw-pass = pkgs.callPackage ./bw-pass { };
 
-  cgt-calc = pkgs.callPackage ./cgt-calc { };
-
   change-audio = pkgs.callPackage ./change-audio { };
 
   change-backlight = pkgs.callPackage ./change-backlight { };