Clean up logs and deprecated functions (#7339)

* less logs

* fix deprecated grpc.Dial

weed/mq/kafka/protocol/produce.go

@@ -590,7 +590,6 @@ func decodeVarint(data []byte) (int64, int) {
 
 // handleProduceV2Plus handles Produce API v2-v7 (Kafka 0.11+)
 func (h *Handler) handleProduceV2Plus(ctx context.Context, correlationID uint32, apiVersion uint16, requestBody []byte) ([]byte, error) {
-	startTime := time.Now()
 
 	// For now, use simplified parsing similar to v0/v1 but handle v2+ response format
 	// In v2+, the main differences are:
@@ -731,7 +730,6 @@ func (h *Handler) handleProduceV2Plus(ctx context.Context, correlationID uint32,
 					if len(records) == 0 {
 						errorCode = 42 // INVALID_RECORD
 					} else {
-						var firstOffsetSet bool
 						for idx, kv := range records {
 							offsetProduced, prodErr := h.produceSchemaBasedRecord(ctx, topicName, int32(partitionID), kv.Key, kv.Value)
 
@@ -746,11 +744,8 @@ func (h *Handler) handleProduceV2Plus(ctx context.Context, correlationID uint32,
 
 							if idx == 0 {
 								baseOffset = offsetProduced
-								firstOffsetSet = true
 							}
 						}
-
-						_ = firstOffsetSet
 					}
 				} else {
 					// Try to extract anyway - this might be a Noop record
@@ -815,7 +810,6 @@ func (h *Handler) handleProduceV2Plus(ctx context.Context, correlationID uint32,
 	if len(response) < 20 {
 	}
 
-	_ = time.Since(startTime) // duration
 	return response, nil
 }