Removed trace print's

Author: Juha Heiuskanen

source/6LoWPAN/adaptation_interface.c

@@ -1022,9 +1022,7 @@ int8_t lowpan_adaptation_interface_tx(protocol_interface_info_entry_t *cur, buff
     }
 
     uint8_t traffic_class = buf->options.traffic_class >> IP_TCLASS_DSCP_SHIFT;
-    if (traffic_class) {
-        tr_debug("TC %u, prority update", traffic_class);
-    }
+
     if (traffic_class == IP_DSCP_EF) {
         buffer_priority_set(buf, QOS_EXPEDITE_FORWARD);
     } else if (traffic_class == IP_DSCP_CS6) {