Remove unused variable
Remove unused variable

ddemidov/amgcl,huahbo/amgcl,dondieselkopf/amgcl,huahbo/amgcl,ddemidov/amgcl,ddemidov/amgcl,dondieselkopf/amgcl,huahbo/amgcl,ddemidov/amgcl,dondieselkopf/amgcl