For ENG-5489, remove locking from StatsAgent that causes deadlocks registering stats at startup
For ENG-5489, remove locking from StatsAgent that causes deadlocks registering stats at startup

creative-quant/voltdb,deerwalk/voltdb,ingted/voltdb,migue/voltdb,wolffcm/voltdb,ingted/voltdb,flybird119/voltdb,zuowang/voltdb,kumarrus/voltdb,simonzhangsm/voltdb,wolffcm/voltdb,deerwalk/voltdb,paulmartel/voltdb,ingted/voltdb,VoltDB/voltdb,simonzhangsm/voltdb,zuowang/voltdb,kumarrus/voltdb,simonzhangsm/voltdb,kumarrus/voltdb,ingted/voltdb,deerwalk/voltdb,paulmartel/voltdb,flybird119/voltdb,flybird119/voltdb,migue/voltdb,flybird119/voltdb,kumarrus/voltdb,paulmartel/voltdb,wolffcm/voltdb,migue/voltdb,ingted/voltdb,wolffcm/voltdb,VoltDB/voltdb,deerwalk/voltdb,wolffcm/voltdb,deerwalk/voltdb,zuowang/voltdb,flybird119/voltdb,paulmartel/voltdb,zuowang/voltdb,simonzhangsm/voltdb,creative-quant/voltdb,creative-quant/voltdb,zuowang/voltdb,flybird119/voltdb,paulmartel/voltdb,creative-quant/voltdb,VoltDB/voltdb,creative-quant/voltdb,ingted/voltdb,deerwalk/voltdb,ingted/voltdb,simonzhangsm/voltdb,migue/voltdb,simonzhangsm/voltdb,zuowang/voltdb,simonzhangsm/voltdb,migue/voltdb,zuowang/voltdb,migue/voltdb,simonzhangsm/voltdb,migue/voltdb,flybird119/voltdb,VoltDB/voltdb,zuowang/voltdb,wolffcm/voltdb,migue/voltdb,wolffcm/voltdb,VoltDB/voltdb,paulmartel/voltdb,flybird119/voltdb,ingted/voltdb,VoltDB/voltdb,wolffcm/voltdb,paulmartel/voltdb,kumarrus/voltdb,kumarrus/voltdb,creative-quant/voltdb,creative-quant/voltdb,kumarrus/voltdb,deerwalk/voltdb,creative-quant/voltdb,paulmartel/voltdb,kumarrus/voltdb,deerwalk/voltdb,VoltDB/voltdb