Removed unused variables from ElasticContext.cpp.
Removed unused variables from ElasticContext.cpp.

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