vimPluginsUpdater: don't define passthru.updateScript (#482782)

pkgs/applications/editors/vim/plugins/utils/updater.nix

@@ -6,8 +6,6 @@
   nix-prefetch-git,
   nurl,
   python3Packages,
-  vimPluginsUpdater,
-  writeShellScript,
 
   # optional
   neovim-unwrapped,
@@ -51,10 +49,5 @@ buildPythonApplication {
     export PYTHONPATH=pkgs/applications/editors/vim/plugins:$PYTHONPATH
   '';
 
-  passthru.updateScript = writeShellScript "updateScript" ''
-    # don't saturate the update bot connection
-    ${lib.getExe vimPluginsUpdater} --proc 2 update
-  '';
-
   meta.mainProgram = "vim-plugins-updater";
 }