Remove NativeAOT workaround after runtime#128020 flows in #11344

Follow-up

Remove the workaround added in #11317 once dotnet/runtime#128020 has flowed into this repo through the normal Maestro dependency update.

Background

dotnet/runtime#128020 works around the illink issue that required the dotnet/android#11317 workaround. After a Maestro update brings that runtime change into dotnet/android, the local workaround should no longer be needed.

Done when

• The Maestro dependency update containing dotnet/runtime#128020 has merged into dotnet/android.
• The workaround from dotnet/android#11317 is removed.
• Relevant NativeAOT/trimmable typemap validation still passes.