Revert "Ox 3256 wrap brainstem js"

[guanw88]

Reverts #223.

This results in bundle errors when attempting to compile mavenlink-js via node 20.

27 08 2024 22:48:08.008:ERROR [framework.browserify]: bundle error
27 08 2024 22:48:08.00[9](https://github.com/mavenlink/mavenlink-js/actions/runs/10587000984/job/29336886421?pr=702#step:5:10):ERROR [framework.browserify]: Error: Can't walk dependency graph: Cannot find module './utility-functions' from '/home/runner/work/mavenlink-js/mavenlink-js/node_modules/brainstem-js/lib/model.js'
    required by /home/runner/work/mavenlink-js/mavenlink-js/node_modules/brainstem-js/lib/model.js
27 08 2024 22:48:08.027:ERROR [framework.browserify]: bundle error
27 08 2024 22:48:08.028:ERROR [framework.browserify]: Error: Can't walk dependency graph: Cannot find module './utility-functions' from '/home/runner/work/mavenlink-js/mavenlink-js/node_modules/brainstem-js/lib/collection.js'
    required by /home/runner/work/mavenlink-js/mavenlink-js/node_modules/brainstem-js/lib/collection.js
27 08 2024 22:48:08.029:ERROR [framework.browserify]: bundle error
27 08 2024 22:48:08.030:ERROR [framework.browserify]: Error: Can't walk dependency graph: Cannot find module './utility-functions' from '/home/runner/work/mavenlink-js/mavenlink-js/node_modules/brainstem-js/lib/storage-manager.js'
    required by /home/runner/work/mavenlink-js/mavenlink-js/node_modules/brainstem-js/lib/storage-manager.js

https://github.com/mavenlink/mavenlink-js/actions/runs/10587000984/job/29336886421?pr=702

[guanw88]

I'm going to try tweaking the browserify settings in mavenlink-js but going to keep this around as a backup.