[v22.x backport] doc: remove obsolete Boxstarter automated install

[MikeMcC399]

Backports #61785 to v22.x

PR-URL: #61785
Fixes: #61690
Reviewed-By: Richard Lau richard.lau@ibm.com
Reviewed-By: Colin Ihrig cjihrig@gmail.com
Reviewed-By: Marco Ippolito marcoippolito54@gmail.com
Reviewed-By: Stefan Stojanovic stefan.stojanovic@janeasystems.com
Reviewed-By: Tierney Cyren hello@bnb.im
Reviewed-By: Luigi Pinca luigipinca@gmail.com
Reviewed-By: Rafael Gonzaga rafael.nunu@hotmail.com

[nodejs-github-bot]

Review requested:

• @nodejs/build
• @nodejs/tsc

[MikeMcC399]

I have added

Signed-off-by: Mike McCready <66998419+MikeMcC399@users.noreply.github.com>

to satisfy linting, despite what it says in https://github.com/nodejs/node/blob/main/doc/contributing/pull-requests.md#step-4-commit that it is not required for backport commits.

[thisalihassan]

@MikeMcC399 as per the backport rule I believe we should not change commit message also, it's fine to let if fail for now

node/doc/contributing/pull-requests.md

Lines 207 to 208 in e15f905

	This rule does not apply to dependency updates (e.g. cherry-picks), release
	commits, or backport commits.

[MikeMcC399]

@thisalihassan

Since I was the author also of the original PR that I am backporting, and at the time the original PR was submitted and landed there was no requirement for Signed-off-by, I'm fine to add this now as a workaround.

I've added a separate issue #63192 to clarify the linting / process problem.

I would only remove the Signed-off-by trailer if it causes an issue to leave it in and I defer to the backporters team for any instructions they want to give.

[marco-ippolito]

Landed in 005508d