rdkafka_performance: use message.timeout.ms default value (issue #74)
rdkafka_performance: use message.timeout.ms default value (issue #74)

This value was set to 5000ms for some unknown historical reason.

wzb56/librdkafka,tattsun/librdkafka,stromnet/librdkafka,wzb56/librdkafka,jszwedko/librdkafka,bhuvanaurora/librdkafka,bhuvanaurora/librdkafka,wzb56/librdkafka,wzb56/librdkafka,frew/librdkafka,vganapathi/librdkafka,yazgoo/librdkafka,stromnet/librdkafka,jszwedko/librdkafka,rileyberton/librdkafka,smanders/librdkafka,yazgoo/librdkafka,tattsun/librdkafka,smanders/librdkafka,janmejay/librdkafka,tempbottle/librdkafka,tempbottle/librdkafka,okman1214/librdkafka,okman1214/librdkafka,stromnet/librdkafka,smanders/librdkafka,tempbottle/librdkafka,vincentbernat/librdkafka,tempbottle/librdkafka,jszwedko/librdkafka,frew/librdkafka,vganapathi/librdkafka,bhuvanaurora/librdkafka,senior7515/librdkafka,vincentbernat/librdkafka,jszwedko/librdkafka,frew/librdkafka,tattsun/librdkafka,orthrus/librdkafka,rileyberton/librdkafka,orthrus/librdkafka,stromnet/librdkafka,tattsun/librdkafka,yazgoo/librdkafka,smanders/librdkafka,frew/librdkafka,orthrus/librdkafka,janmejay/librdkafka,okman1214/librdkafka,zhangjingpu/librdkafka,frew/librdkafka,lsniks/librdkafka,vganapathi/librdkafka,zhangjingpu/librdkafka,vincentbernat/librdkafka,janmejay/librdkafka,senior7515/librdkafka,zhangjingpu/librdkafka,bwelling/librdkafka,lsniks/librdkafka,bhuvanaurora/librdkafka,bwelling/librdkafka,bhuvanaurora/librdkafka,tempbottle/librdkafka,stromnet/librdkafka,bwelling/librdkafka,rileyberton/librdkafka,yazgoo/librdkafka,klonikar/librdkafka,klonikar/librdkafka,senior7515/librdkafka,okman1214/librdkafka,klonikar/librdkafka,rileyberton/librdkafka,bwelling/librdkafka,wzb56/librdkafka,okman1214/librdkafka,lsniks/librdkafka,jszwedko/librdkafka,zhangjingpu/librdkafka,zhangjingpu/librdkafka,klonikar/librdkafka,bwelling/librdkafka,lsniks/librdkafka,yazgoo/librdkafka,vincentbernat/librdkafka,vganapathi/librdkafka,tattsun/librdkafka,lsniks/librdkafka,orthrus/librdkafka,janmejay/librdkafka,senior7515/librdkafka,rileyberton/librdkafka,vganapathi/librdkafka,smanders/librdkafka