Remove unused function

#define END_CAPTURE

#endif

// ----------------------------------------------------------------------

// helper functions, not in library API

// ----------------------------------------------------------------------

/* ----------------------------------------------------------------------

   concatenate one or more LAMMPS input lines starting at ptr

   removes NULL terminator when last printable char of line = '&'

     by replacing both NULL and '&' with space character

   repeat as many times as needed

   on return, ptr now points to longer line

------------------------------------------------------------------------- */

void concatenate_lines(char *ptr)

{

  int nend = strlen(ptr);

  int n = nend-1;

  while (n && isspace(ptr[n])) n--;

  while (ptr[n] == '&') {

    ptr[nend] = ' ';

    ptr[n] = ' ';

    strtok(ptr,"\n");

    nend = strlen(ptr);

    n = nend-1;

    while (n && isspace(ptr[n])) n--;

  }

}

// ----------------------------------------------------------------------

// library API functions to create/destroy an instance of LAMMPS

//   and communicate commands to it