python3Packages.wxPython_4_0: remove manual wrapPythonPrograms invocation
python3Packages.wxPython_4_0: remove manual wrapPythonPrograms invocation

This was causing programs to be wrapped twice, as wrapping occurs automatically
during the fixup phase.

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