Remove unnecessary NRT directives from TaskDialog interop files#3602

Merged

JeremyKuhne merged 1 commit intodotnet:masterfrom

kpreisser:removeUnnecessaryNullableDirectives

Jul 22, 2020

Commits on Jul 19, 2020

Remove unnecessary NRT directives as dotnet#3451 globally enabled this in the project file.
kpreisser
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