Revert "[VM/nnbd] Fix canonicalization of type 'Never' (fixes #40249)."

This reverts commit dfce72b.

Reason for revert: This was not the correct fix

Original change's description:
> [VM/nnbd] Fix canonicalization of type 'Never' (fixes #40249).
> 
> Change-Id: Ib3dc4fc6d31aeadb331fda017fc8b4f1a8ae8221
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/134382
> Reviewed-by: Alexander Markov <[email protected]>
> Commit-Queue: Régis Crelier <[email protected]>

[email protected],[email protected],[email protected]

# Not skipping CQ checks because original CL landed > 1 day ago.

Change-Id: I3b2fd4b4fcf829d3d94aa347c0b8660c5cdf82ce
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/134881
Reviewed-by: Régis Crelier <[email protected]>
Commit-Queue: Régis Crelier <[email protected]>

Author: crelier

runtime/vm/object.cc

@@ -1041,13 +1041,7 @@ void Object::Init(Isolate* isolate) {
   void_type_->SetCanonical();
 
   cls = never_class_;
-  *never_type_ =
-      Type::New(cls, Object::null_type_arguments(), TokenPosition::kNoSource,
-                Dart::non_nullable_flag() ? Nullability::kNonNullable
-                                          : Nullability::kLegacy);
-  never_type_->SetIsFinalized();
-  never_type_->ComputeHash();
-  never_type_->SetCanonical();
+  *never_type_ = Type::NewNonParameterizedType(cls);
 
   // Since TypeArguments objects are passed as function arguments, make them
   // behave as Dart instances, although they are just VM objects.