chow-kick: fix build

It wasn't building anymore because of https://github.com/NixOS/nixpkgs/pull/427813
Remove webkit, as it seems to be unneeded: https://github.com/jatinchowdhury18/AnalogTapeModel/issues/327

pkgs/by-name/ch/chow-kick/package.nix

···
   sqlite,
   stdenv,
   util-linuxMinimal,
-  webkitgtk_4_0,
 }:
 
 stdenv.mkDerivation (finalAttrs: {
···
     python3
     sqlite
     util-linuxMinimal
-    webkitgtk_4_0
   ];
 
   cmakeFlags = [