chore(util.js): remove useless swapGStoJS function from util.js
chore(util.js): remove useless swapGStoJS function from util.js

BREAKING CHANGE:
This removes the export of the `swapGStoJS` function from the util.js file.
If you still need it for your project, don't hesitate to copy the code below,
considering its logic is simple.

danthareja/node-google-apps-script