remove dead code

                        double aval[], int acol_ind[], int arow_ptr[],

                        double x[], double b[])

{

  double one, zero, rho, rho_old, alpha, beta, gamma;

  double one, rho, rho_old, alpha, beta, gamma;

  int iter, maxiter;

  int n;

  double sumtmp;

  n = nlocal+nghost+1;

  one = 1.0;

  zero = 0.0;

  maxiter = 100;

  for (int i = 0; i < n; i++) w[i] = 0;