skrooge: remove QtWebKit dependency
skrooge: remove QtWebKit dependency

Remove QtWebkit dependency introduced in
https://github.com/NixOS/nixpkgs/commit/a1b8fe8c8fa59024ed87024b54ddba38811010cf

It is no longer needed after upstream fix
https://cgit.kde.org/skrooge.git/commit/?id=cb8b56fa729d5f6ee4652e79de354721f4742ee7

SymbiFlow/nixpkgs,SymbiFlow/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs,SymbiFlow/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs,SymbiFlow/nixpkgs,SymbiFlow/nixpkgs,SymbiFlow/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs,SymbiFlow/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs,SymbiFlow/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs