VDM-123: Removed unused codes
VDM-123: Removed unused codes

migue/voltdb,simonzhangsm/voltdb,simonzhangsm/voltdb,VoltDB/voltdb,deerwalk/voltdb,deerwalk/voltdb,deerwalk/voltdb,simonzhangsm/voltdb,migue/voltdb,migue/voltdb,deerwalk/voltdb,migue/voltdb,VoltDB/voltdb,simonzhangsm/voltdb,migue/voltdb,simonzhangsm/voltdb,deerwalk/voltdb,VoltDB/voltdb,simonzhangsm/voltdb,deerwalk/voltdb,migue/voltdb,VoltDB/voltdb,deerwalk/voltdb,simonzhangsm/voltdb,simonzhangsm/voltdb,VoltDB/voltdb,VoltDB/voltdb,migue/voltdb,deerwalk/voltdb,migue/voltdb,VoltDB/voltdb