Update Remove-SmbShare.md for scopename and related example

[nedpyle]

PR Summary

Redesigned help to not be misleading about scopename: previous examples and help were often referring to failover clustering without being explicit, showing output that 99.9% of customers will never see because they are not running clusters. I am going to do this against get-smbshare, new-smbshare, set-smbshare, remove-smbshare as needed.

PR Checklist

• Descriptive Title: This PR's title is a synopsis of the changes it proposes.
• Summary: This PR's summary describes the scope and intent of the change.
• Contributor's Guide: I have read the contributors guide.
• Style: This PR adheres to the style guide.

[learn-build-service-prod]

Learn Build status updates of commit 09a9330:

✅ Validation status: passed

File	Status	Preview URL	Details
docset/winserver2022-ps/smbshare/Remove-SmbShare.md	✅Succeeded	View (WindowsServer2022-ps)

For more details, please refer to the build report.

Note: Broken links written as relative paths are included in the above build report. For broken links written as absolute paths or external URLs, see the broken link report.

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[learn-build-service-prod]

Learn Build status updates of commit d4da29f:

✅ Validation status: passed

File	Status	Preview URL	Details
docset/winserver2022-ps/smbshare/Remove-SmbShare.md	✅Succeeded	View (WindowsServer2022-ps)

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel