Get rid of redundant temporary vector in schur_complement
Get rid of redundant temporary vector in schur_complement

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