Remove Stack\<T> section

[tdykstra]

• Remove Stack section from Migrate doc -- Newtonsoft.Json does it the same way (reverses order on serialization)

---

Document Details

⚠ Do not edit this section. It is required for docs.microsoft.com ➟ GitHub issue linking.

• ID: 6b74d77c-33e1-d44c-18c6-bd0b612f74de
• Version Independent ID: 9c6a7135-eb75-21a9-1d27-0880459523ca
• Content: Migrate from Newtonsoft.Json to System.Text.Json - .NET
• Content Source: docs/standard/serialization/system-text-json-migrate-from-newtonsoft-how-to.md
• Product: dotnet
• GitHub Login: @tdykstra
• Microsoft Alias: tdykstra