6069 libdisasm: instrlen arch op should have a sane default
Reviewed by: Robert Mustacchi <rm@joyent.com>

*** 182,204 ****
                  return (1);
  
          return (0);
  }
  
- static int
- dis_i386_instrlen(dis_handle_t *dhp, uint64_t pc)
- {
-         if (dis_disassemble(dhp, pc, NULL, 0) != 0)
-                 return (-1);
- 
-         return (dhp->dh_addr - pc);
- }
- 
  dis_arch_t dis_arch_i386 = {
          .da_supports_flags      = dis_i386_supports_flags,
          .da_handle_attach       = dis_i386_handle_attach,
          .da_handle_detach       = dis_i386_handle_detach,
          .da_disassemble         = dis_i386_disassemble,
          .da_min_instrlen        = dis_i386_min_instrlen,
          .da_max_instrlen        = dis_i386_max_instrlen,
-         .da_instrlen            = dis_i386_instrlen,
  };
--- 182,194 ----