ui/node_modules/flat-cache/src/del.js

var rimraf = require('rimraf').sync;
var fs = require('fs');

module.exports = function del(file) {
  if (fs.existsSync(file)) {
    //if rimraf doesn't throw then the file has been deleted or didn't exist
    rimraf(file, {
      glob: false,
    });
    return true;
  }
  return false;
};