De-comment Markdown tables

What does this MR do and why?

Closes Follow-up from "Address MarkdownTable regressio... (#607924) by removing some comments.

References

• Address MarkdownTable regressions: vivified ite... (!247991 - merged)
  • Image lightbox does not open for images inside ... (#607537 - closed)

How to set up and validate locally

Comment removal only.

MR acceptance checklist

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