Remove unused variable
Remove unused variable

In my defense, our crazy macros here make it less obvious which
variables are and aren't needed.

hrittich/libmesh,jwpeterson/libmesh,BalticPinguin/libmesh,BalticPinguin/libmesh,90jrong/libmesh,dschwen/libmesh,giorgiobornia/libmesh,capitalaslash/libmesh,libMesh/libmesh,hrittich/libmesh,giorgiobornia/libmesh,roystgnr/libmesh,capitalaslash/libmesh,BalticPinguin/libmesh,hrittich/libmesh,capitalaslash/libmesh,pbauman/libmesh,pbauman/libmesh,jwpeterson/libmesh,hrittich/libmesh,BalticPinguin/libmesh,90jrong/libmesh,libMesh/libmesh,dschwen/libmesh,pbauman/libmesh,roystgnr/libmesh,roystgnr/libmesh,roystgnr/libmesh,dschwen/libmesh,capitalaslash/libmesh,90jrong/libmesh,balborian/libmesh,balborian/libmesh,libMesh/libmesh,jwpeterson/libmesh,balborian/libmesh,90jrong/libmesh,dschwen/libmesh,balborian/libmesh,libMesh/libmesh,giorgiobornia/libmesh,90jrong/libmesh,90jrong/libmesh,giorgiobornia/libmesh,capitalaslash/libmesh,giorgiobornia/libmesh,capitalaslash/libmesh,BalticPinguin/libmesh,BalticPinguin/libmesh,capitalaslash/libmesh,giorgiobornia/libmesh,BalticPinguin/libmesh,balborian/libmesh,jwpeterson/libmesh,libMesh/libmesh,90jrong/libmesh,balborian/libmesh,hrittich/libmesh,giorgiobornia/libmesh,jwpeterson/libmesh,roystgnr/libmesh,dschwen/libmesh,hrittich/libmesh,dschwen/libmesh,balborian/libmesh,roystgnr/libmesh,balborian/libmesh,hrittich/libmesh,giorgiobornia/libmesh,roystgnr/libmesh,dschwen/libmesh,pbauman/libmesh,90jrong/libmesh,pbauman/libmesh,capitalaslash/libmesh,dschwen/libmesh,BalticPinguin/libmesh,balborian/libmesh,pbauman/libmesh,roystgnr/libmesh,pbauman/libmesh,libMesh/libmesh,pbauman/libmesh,jwpeterson/libmesh,libMesh/libmesh,jwpeterson/libmesh,balborian/libmesh,pbauman/libmesh,jwpeterson/libmesh,90jrong/libmesh,libMesh/libmesh,hrittich/libmesh,giorgiobornia/libmesh,hrittich/libmesh