Remove note about ssh keys

[lexnederbragt]

Unless I am mistaken, using ssh keys is now a requirement, which makes this note outdated.

[github-actions]

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 instructor-notes.md | 5 -----
 md5sum.txt          | 2 +-
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⏱️ Updated at 2023-09-15 11:17:30 +0000

[kekoziar]

Thank you. This artifact was missed during the original adoption of ssh keys into the lesson.