Remove unused variable in ElementsIntersectedByPlane refs #6876
Remove unused variable in ElementsIntersectedByPlane refs #6876

liuwenf/moose,milljm/moose,jessecarterMOOSE/moose,katyhuff/moose,jessecarterMOOSE/moose,jessecarterMOOSE/moose,idaholab/moose,yipenggao/moose,laagesen/moose,andrsd/moose,bwspenc/moose,nuclear-wizard/moose,idaholab/moose,sapitts/moose,bwspenc/moose,YaqiWang/moose,jhbradley/moose,laagesen/moose,friedmud/moose,dschwen/moose,joshua-cogliati-inl/moose,andrsd/moose,jasondhales/moose,backmari/moose,liuwenf/moose,Chuban/moose,harterj/moose,harterj/moose,milljm/moose,milljm/moose,permcody/moose,stimpsonsg/moose,katyhuff/moose,idaholab/moose,milljm/moose,jhbradley/moose,lindsayad/moose,backmari/moose,nuclear-wizard/moose,liuwenf/moose,dschwen/moose,stimpsonsg/moose,katyhuff/moose,stimpsonsg/moose,bwspenc/moose,jessecarterMOOSE/moose,jhbradley/moose,YaqiWang/moose,dschwen/moose,permcody/moose,lindsayad/moose,bwspenc/moose,lindsayad/moose,milljm/moose,laagesen/moose,liuwenf/moose,sapitts/moose,Chuban/moose,laagesen/moose,joshua-cogliati-inl/moose,backmari/moose,yipenggao/moose,andrsd/moose,permcody/moose,jasondhales/moose,liuwenf/moose,jhbradley/moose,lindsayad/moose,Chuban/moose,bwspenc/moose,permcody/moose,YaqiWang/moose,liuwenf/moose,andrsd/moose,SudiptaBiswas/moose,SudiptaBiswas/moose,harterj/moose,laagesen/moose,jasondhales/moose,harterj/moose,harterj/moose,nuclear-wizard/moose,idaholab/moose,andrsd/moose,sapitts/moose,backmari/moose,SudiptaBiswas/moose,yipenggao/moose,joshua-cogliati-inl/moose,Chuban/moose,jessecarterMOOSE/moose,dschwen/moose,sapitts/moose,sapitts/moose,stimpsonsg/moose,lindsayad/moose,katyhuff/moose,jasondhales/moose,yipenggao/moose,friedmud/moose,friedmud/moose,SudiptaBiswas/moose,idaholab/moose,nuclear-wizard/moose,dschwen/moose,SudiptaBiswas/moose,YaqiWang/moose,joshua-cogliati-inl/moose,friedmud/moose