remove_fields_valist
Description:
va_list form of remove_fields.
Parameters:
| this | |
| fieldname | the name of the field to remove | 
| varargs | null-terminated list of more fieldnames to remove | 
va_list form of remove_fields.
| this | |
| fieldname | the name of the field to remove | 
| varargs | null-terminated list of more fieldnames to remove |