fix(build): remove babel plugin for external helpers

[jcreamer898]

Should fix issue with babel helpers in client libs.

[kwelch-eb]

So they even call out that:

This may become an issue if you have multiple files, especially when you're sending them to the browser. gzip alleviates most of this concern but it's still not ideal.

They recommend building and injecting the helpers.
https://babeljs.io/docs/en/babel-plugin-external-helpers.html#getting-the-external-helpers

[kwelch-eb]

We could leverage this, but include them properly. Is there a way we can test this before building and deploying a new version.

[jcreamer898]

Personally I think it's overkill to worry about the overhead of including external helpers. The helpers that they inject are small enough that it's a bit of a micro-optimization.

[ebtravis]

🎉 This PR is included in version 1.0.2 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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