eliminate variable length arrays from compute entropy/atom

  int i,j,ii,jj,inum,jnum;

  double xtmp,ytmp,ztmp,delx,dely,delz,rsq;

  int *ilist,*jlist,*numneigh,**firstneigh;

  double rbin[nbin], rbinsq[nbin];

  double *rbin = new double[nbin];

  double *rbinsq = new double[nbin];

  invoked_peratom = update->ntimestep;

      // loop over list of all neighbors within force cutoff

      // initialize gofr

      double gofr[nbin];

      double *gofr = new double[nbin];

      for(int k=0;k<nbin;++k) gofr[k]=0.;

      for (jj = 0; jj < jnum; jj++) {

      }

      // Calculate integrand

      double integrand[nbin];

      double *integrand = new double[nbin];

      for(int k=0;k<nbin;++k){

        if (gofr[k]<1.e-10) {

          integrand[k] = rbinsq[k];

          integrand[k] = (gofr[k]*log(gofr[k])-gofr[k]+1)*rbinsq[k];

        }

      }

      delete [] gofr;

      // Integrate with trapezoid rule

      double value = 0.;

      value += 0.5*integrand[0];

      value += 0.5*integrand[nbin-1];

      value *= deltar;

      delete [] integrand;

      pair_entropy[i] = -2*MY_PI*density*value;

    }

  }

      }

    }

  }

  delete [] rbin;

  delete [] rbinsq;

}