Clean up logs and deprecated functions (#7339)

* less logs

* fix deprecated grpc.Dial

weed/mq/kafka/protocol/fetch.go

@@ -181,7 +181,6 @@ func (h *Handler) handleFetch(ctx context.Context, correlationID uint32, apiVers
 	}
 
 	pending := make([]pendingFetch, 0)
-	persistentFetchStart := time.Now()
 
 	// Phase 1: Dispatch all fetch requests to partition readers (non-blocking)
 	for _, topic := range fetchRequest.Topics {
@@ -285,8 +284,6 @@ func (h *Handler) handleFetch(ctx context.Context, correlationID uint32, apiVers
 	}
 done:
 
-	_ = time.Since(persistentFetchStart) // persistentFetchDuration
-
 	// ====================================================================
 	// BUILD RESPONSE FROM FETCHED DATA
 	// Now assemble the response in the correct order using fetched results
@@ -1132,7 +1129,6 @@ func (h *Handler) decodeRecordValueToKafkaMessage(topicName string, recordValueB
 		return nil
 	}
 
-
 	// For system topics like _schemas, _consumer_offsets, etc.,
 	// return the raw bytes as-is. These topics store Kafka's internal format (Avro, etc.)
 	// and should NOT be processed as RecordValue protobuf messages.