Revert "third try docfx"

[sdwheeler]

Reverts MicrosoftDocs/PowerShell-Docs-DSC#187

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

Learn Build status updates of commit 36d3c5c:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
dsc/docfx.json	:white_check_mark:Succeeded

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