delete un use log message

Author: KirillKurdyukov

src/Ydb.Sdk/src/Services/Topic/Reader/Reader.cs

@@ -337,10 +337,6 @@ private async Task RunProcessingStreamResponse()
             Logger.LogError(e, "ReaderSession[{SessionId}] have transport error on processing server messages",
                 SessionId);
         }
-        catch (OperationCanceledException)
-        {
-            Logger.LogInformation("");
-        }
         finally
         {
             ReconnectSession();