make: unifdef for MAKETOOL and DISTRIBUTED (undefined)

*** 58,75 ****
          Boolean         sdot_target;    /* used to identify s.m(/M)akefile */
          Boolean         all_parallel;                   /* TEAMWARE_MAKE_CMN */
          Boolean         assign_done;
          int foo;        
          Boolean         build_failed_seen;
- #ifdef DISTRIBUTED
-         Boolean         building_serial;
- #endif
          Name            built_last_make_run;
          Name            c_at;
- #ifdef DISTRIBUTED
-         Boolean         called_make = false;
- #endif
          Boolean         cleanup;
          Boolean         close_report;
          Boolean         command_changed;
          Boolean         commands_done;
          Chain           conditional_targets;
--- 58,69 ----