Remove refence to rebase-strategy

[yeikel]

Why:

The rebase-strategy mention is not related to the feature documented and it just adds noise and confusion while reading the documentation

What's being changed (if available, include any code snippets, screenshots, or gifs):

Removes unrelated mentions to rebase-strategy as it is not related to the feature being discussed

Check off the following:

• A subject matter expert (SME) has reviewed the technical accuracy of the content in this PR. In most cases, the author can be the SME. Open source contributions may require an SME review from GitHub staff.
• The changes in this PR meet the docs fundamentals that are required for all content.
• All CI checks are passing and the changes look good in the review environment.

[github-actions]

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Table of review links

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The table shows the files in the content directory that were changed in this pull request. This helps you review your changes on a staging server. Changes to the data directory are not included in this table.

Source	Review	Production	What Changed
code-security/dependabot/dependabot-version-updates/controlling-dependencies-updated.md	fpt ghec ghes@ 3.18 3.17 3.16 3.15 3.14	fpt ghec ghes@ 3.18 3.17 3.16 3.15 3.14

Key: fpt: Free, Pro, Team; ghec: GitHub Enterprise Cloud; ghes: GitHub Enterprise Server

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[Sharra-writes]

@yeikel Thanks for opening a PR! I'll get this triaged for review.

[github-actions]

A stale label has been added to this pull request because it has been open 30 days with no activity. If you think this pull request should remain open, please add a new comment.

[yeikel]

@Sharra-writes could you please remove the stale label or clarify if there is anything I need to do?

[Sharra-writes]

@yeikel You're good. There's a week between the label being applied and PRs being closed, and I get notifications when it's applied so I can go through and take it off anything that's still being worked on.