Delete unnecessary namespace files

[gewarren]

These namespaces don't seem to exist in the docs.

Contributes to #10998

[learn-build-service-prod]

Learn Build status updates of commit 436848f:

✅ Validation status: passed

File	Status	Preview URL	Details
xml/ns-.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-DbLinq.Util.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Debugging.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Microsoft.Extensions.AI.Evaluation.Reporting.Storage.Disk.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Microsoft.Extensions.CommandLineUtils.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Microsoft.Extensions.Configuration.AzureKeyVault.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Microsoft.Extensions.DiagnosticAdapter.Internal.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Microsoft.Extensions.Globalization.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Microsoft.Extensions.Http.Resilience.FaultInjection.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Microsoft.Extensions.Http.Telemetry.Metering.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Microsoft.Extensions.Http.Telemetry.Tracing.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Microsoft.Extensions.Localization.Internal.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Microsoft.Extensions.Logging.Abstractions.Internal.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Microsoft.Extensions.Logging.AzureAppServices.Internal.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Microsoft.Extensions.Logging.Console.Internal.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Microsoft.Extensions.Logging.EventLog.Internal.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Microsoft.Extensions.Logging.Filter.Internal.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Microsoft.Extensions.Logging.Internal.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Microsoft.Extensions.PlatformAbstractions.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Microsoft.Extensions.Resilience.FaultInjection.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Microsoft.Extensions.Resilience.Options.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Microsoft.Extensions.Resilience.Resilience.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Microsoft.Extensions.Resilience.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Microsoft.Extensions.Telemetry.Enrichment.xml	✅Succeeded	n/a (file deleted or renamed)
xml/ns-Microsoft.Extensions.Telemetry.Latency.xml	✅Succeeded	n/a (file deleted or renamed)

This comment lists only the first 25 files in the pull request.
For more details, please refer to the build report.

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[BillWagner]

The build is clean, so let's do it.