follow up

tests/Subscriptions/RegularSubscriptionTests.cs

@@ -19,12 +19,8 @@ public class RegularSubscriptionTests
         string[] expected = [
             "introduced an ERROR",
             "got a CRITICAL message"
-        ]; 
+        ];
 
-        // var isSubscriptionSupportsPipeline = typeof(PipelineSubscritpion) || subscription.CanDoNext
-
-        // source -> RegularSubscription -> DataSubscriber
-        // TODO: make a fluent provider here.
         var subscriber = new DataSubscriber<string>();
         var subscription = new RegularSubscription<string>(subscriber, predicate);