Optional relationship with dependents/children loaded not up to date

Hi

Referencing https://github.com/dotnet/efcore/issues/30752 the table in [Optional relationship with dependents/children loaded](https://learn.microsoft.com/en-us/ef/core/saving/cascade-delete#optional-relationship-with-dependentschildren-loaded) is no longer correct according to discussion in the aforementioned issue. It should be clearly stated that on severing the relationship the dependent will be a surviving orphan that needs manual cleanup if needed.

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#### Document Details

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* ID: 3ed1b8a1-fa32-e147-ae0f-76b3620473f9
* Version Independent ID: 10ce2d9f-8284-a509-5fed-669abfb9d8ae
* Content: [Cascade Delete - EF Core](https://learn.microsoft.com/en-us/ef/core/saving/cascade-delete)
* Content Source: [entity-framework/core/saving/cascade-delete.md](https://github.com/dotnet/EntityFramework.Docs/blob/main/entity-framework/core/saving/cascade-delete.md)
* Product: **entity-framework**
* Technology: **entity-framework-core**
* GitHub Login: @ajcvickers
* Microsoft Alias: **avickers**