Remove note about CM 2006

[lamosley]

CM 2006 and earlier has been out of support for more than 3 years; TP updates are enabled by default now, so we should remove this note.

[prmerger-automator[bot]]

@lamosley : Thanks for your contribution! The author(s) have been notified to review your proposed change.

[learn-build-service-prod[bot]]

Learn Build status updates of commit 75a0994:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
memdocs/configmgr/sum/deploy-use/third-party-software-updates.md	:white_check_mark:Succeeded

For more details, please refer to the build report.

For any questions, please:

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[BalaDelli]

#sign-off

[learn-build-service-prod[bot]]

Learn Build status updates of commit a2f8ef0:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
memdocs/configmgr/sum/deploy-use/third-party-software-updates.md	:white_check_mark:Succeeded

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