Fix SOS thread statics display (dotnet/coreclr#21426)

Fix SOS thread statics display (dotnet/coreclr#21426)

I've noticed that when dumping an object with thread locals using SOS
dumpobj command, I never get the thread locals. I've stepped through the
code in SOS that displays thread statics and found that for some strange
reason, it dismisses threads where DomainLocalModule doesn't have
"initialized" flag set for the given class. However, when runtime
accesses thread statics, it just checks "allocated" flag set for the
given class in the ThreadLocalModule. Removing the extra check for
DomainLocalModule fixed the problem and now thread statics are displayed
properly.

Commit migrated from https://github.com/dotnet/coreclr/commit/add9f313447c44db85944cbff0d633f8852b5b9f