Remove product_stage and product_section from cli

What does this MR do and why?

Related to #440305 (closed)

Remove product_stage and product_section from internal events cli.

MR acceptance checklist

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Screenshots or screen recordings

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Before	After

How to set up and validate locally

Play around using internal events cli: ruby scripts/internal_events/cli.rb

This should be able to create events and metrics files correctly. They should not include product_stage and product_section data.