fix force->bounds() bug and remove dead code

#include <iostream>

#include <sstream>

#include <math.h>

#include <string.h>

#include <stdlib.h>

#include "dihedral_table_cut.h"

#include "atom.h"

#include "neighbor.h"

{

  int i1,i2,i3,i4,i,j,k,n,type;

  double edihedral,f1[3],f2[3],f3[3],f4[3];

  double edihedral;

  double vb1x,vb1y,vb1z,vb2x,vb2y,vb2z,vb3x,vb3y,vb3z,vb2xm,vb2ym,vb2zm;

  double fphi,fpphi;

  double r1mag2,r1,r2mag2,r2,r3mag2,r3;

  double sb1,rb1,sb2,rb2,sb3,rb3,c0,r12c1;

  double r12c2,costh12,costh13,costh23,sc1,sc2,s1,s2,c;

  double cosphi,phi,sinphi,a11,a22,a33,a12,a13,a23,sx1,sx2;

  double sx12,sy1,sy2,sy12,sz1,sz2,sz12,dphi1,dphi2,dphi3;

  double de_dihedral,t1,t2,t3,t4,cos2phi,cos3phi,bt1,bt2;

  double bt3,sumbte,db,sumbtf,at1,at2,at3,da,da1,da2,r1_0;

  double r3_0,dr1,dr2,tk1,tk2,s12,sin2;

  double dcosphidr[4][3],dphidr[4][3],dbonddr[3][4][3],dthetadr[2][4][3];

  double phi,sinphi,a11,a22,a33,a12,a13,a23,sx1,sx2;

  double sx12,sy1,sy2,sy12,sz1,sz2,sz12;

  double t1,t2,t3,t4;

  double da1,da2;

  double s12,sin2;

  double dcosphidr[4][3],dphidr[4][3],dthetadr[2][4][3];

  double fabcd[4][3];

  edihedral = 0.0;

    if (c > 1.0) c = 1.0;

    if (c < -1.0) c = -1.0;

    cosphi = c;

    double phil = acos(c);

    phi = acos(c);

  if (narg != 7) error->all(FLERR,"Incorrect args for dihedral coefficients");

  if (!allocated) allocate();

  int ilo,ihi;

  force->bounds(arg[0],atom->ndihedraltypes,ilo,ihi);

  force->bounds(FLERR,arg[0],atom->ndihedraltypes,ilo,ihi);

  int count = 0;