fixup! make: remove maketool support

*** 29,38 ****
  #include <vroot/vroot.h>
  
  extern Boolean  await(register Boolean ignore_error, register Boolean silent_error, Name target, wchar_t *command, pid_t running_pid, void *xdrs, int job_msg_id);
  extern int      doexec(register wchar_t *command, register Boolean ignore_error, char *stdout_file, char *stderr_file, pathpt vroot_path, int nice_prio);
  extern int      doshell(wchar_t *command, register Boolean ignore_error, char *stdout_file, char *stderr_file, int nice_prio);
- extern Doname   dosys_mksh(register Name command, register Boolean ignore_error, register Boolean call_make, Boolean silent_error, Boolean always_exec, Name target, char *stdout_file, char *stderr_file, pathpt vroot_path, int nice_prio);
  extern void     redirect_io(char *stdout_file, char *stderr_file);
  extern void     sh_command2string(register String command, register String destination);
  
  #endif
--- 29,37 ----