`[Android.Runtime.Preserve]` is deprecated

[jonathanpeppers]

Android framework version

net9.0-android

Affected platform version

.NET 9

Description

[Android.Runtime.Preserve] has been deprecated for a while, and will do nothing in .NET 11.

Remove all usage of it.

[rmarinho]

net9 ?

[jonathanpeppers]

That is just the default dropdown in the issue template.

[rmarinho]

Opened a issue to track also on the maui side dotnet/maui#32974