remove redundant NoteSuccess().

Author: FGasper

internal/verifier/compare.go

@@ -11,6 +11,7 @@ import (
 	"go.mongodb.org/mongo-driver/bson"
 	"go.mongodb.org/mongo-driver/mongo"
 	"golang.org/x/exp/slices"
+	"golang.org/x/sync/errgroup"
 )
 
 const readTimeout = 10 * time.Minute
@@ -359,10 +360,6 @@ func iterateCursorToChannel(
 		writer <- slices.Clone(cursor.Current)
 	}
 
-	if cursor.Err() == nil {
-		state.NoteSuccess()
-	}
-
 	close(writer)
 
 	return errors.Wrap(cursor.Err(), "failed to iterate cursor")