make: remove maketool support

*** 108,118 ****
  //      Boolean         make_state_locked; // Moved to lib/mksh
          Name            make_version;
          char            mbs_buffer2[(MAXPATHLEN * MB_LEN_MAX)];
          char            *mbs_ptr;
          char            *mbs_ptr2;
-         int             mtool_msgs_fd;
          Boolean         depinfo_already_read = false;
          Boolean         no_action_was_taken = true;     /* true if we've not **
                                                          ** run any command   */
  
          Boolean         no_parallel = false;
--- 108,117 ----
*** 146,156 ****
          Cmd_line        sccs_get_posix_rule;
          Name            get_name;
          Cmd_line        get_rule;
          Name            get_posix_name;
          Cmd_line        get_posix_rule;
-         Boolean         send_mtool_msgs;                /* `-K' */
          Boolean         all_precious;
          Boolean         silent_all;                     /* `-s' */
          Boolean         report_cwd;                     /* `-w' */
          Boolean         silent;                         /* `-s' */
          Name            silent_name;
--- 145,154 ----