Drop the SDK bug note from the AOT sample's doc setting #4

The native AOT sample sets PublishDocumentationFiles=false. That setting stays: a native executable ships no XML docs.

Its comment also says the .NET 11 rc.2 Compile-only AOT publish (dotnet/sdk#54515) never copies the project's XML file into OutDir, where publish looks for it (MSB3030 with GenerateDocumentationFile on). Once an SDK fixes that, drop that sentence from the comment. To check: publish a dotnet new console with PublishAot and GenerateDocumentationFile on and PublishDocumentationFiles left at its default.