Suppress a chatty log

Change-Id: I5b2e91d48f3ad8f437479427406591ab7bf1fec6
diff --git a/voltha/adapters/openolt/openolt_kafka_proxy.py b/voltha/adapters/openolt/openolt_kafka_proxy.py
index 0d3a79a..fd30022 100644
--- a/voltha/adapters/openolt/openolt_kafka_proxy.py
+++ b/voltha/adapters/openolt/openolt_kafka_proxy.py
@@ -75,7 +75,7 @@
 
 def kafka_send_pb(topic, msg):
     try:
-        log.debug('send protobuf to kafka', topic=topic, msg=msg)
+        # log.debug('send protobuf to kafka', topic=topic, msg=msg)
         kafka_proxy = registry('openolt_kafka_proxy')
         if kafka_proxy and not kafka_proxy.is_faulty():
             log.debug('kafka-proxy-available')