all: fix stale comments

Change-Id: I4bfef75bc74c8d876a3926635bea12bbbaf4993e
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/185238
Reviewed-by: Damien Neil <dneil@google.com>
diff --git a/internal/impl/legacy_message.go b/internal/impl/legacy_message.go
index f745a81..fd3732f 100644
--- a/internal/impl/legacy_message.go
+++ b/internal/impl/legacy_message.go
@@ -90,14 +90,11 @@
 	aberrantMessageDescCache map[reflect.Type]protoreflect.MessageDescriptor
 )
 
-// aberrantLoadEnumDesc returns an EnumDescriptor derived from the Go type,
+// aberrantLoadMessageDesc returns an EnumDescriptor derived from the Go type,
 // which must not implement protoreflect.ProtoMessage or messageV1.
 //
 // This is a best-effort derivation of the message descriptor using the protobuf
 // tags on the struct fields.
-//
-// The finalized flag determines whether the returned message descriptor must
-// be fully initialized.
 func aberrantLoadMessageDesc(t reflect.Type) pref.MessageDescriptor {
 	aberrantMessageDescLock.Lock()
 	defer aberrantMessageDescLock.Unlock()