docs: Remove region tags

[camiekim]

Per b/296916003

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Fixes #<issue_number_goes_here> 🦕

[snippet-bot]

Here is the summary of changes.

You are about to delete 1 region tag.

• packages/google-cloud-workflows-executions/samples/quickstart.js:18, tag workflows_quickstart

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[ddelgrosso1]

Hi @camiekim per the buganizer issue you linked should these be replaced with workflows_client_library as opposed to just removing them?

[camiekim]

Hi @ddelgrosso1, there is already an existing Node.js sample with the correct region tag (now) that is being used here: https://cloud.google.com/workflows/docs/samples/workflows-client-library?hl=en#workflows_client_library-nodejs_javascript

Thanks for checking though!

[ddelgrosso1]

/gcbrun

[alexander-fenster]

/gcbrun