make: unifdef for NSE (undefined)

@@ -332,13 +332,10 @@
  */
 typedef enum {
         no_special,
         built_last_make_run_special,
         default_special,
-#ifdef NSE
-        derived_src_special,
-#endif
         get_posix_special,
         get_special,
         ignore_special,
         keep_state_file_special,
         keep_state_special,

@@ -416,13 +413,10 @@
         /*
         * For "ABC = xyz" constructs
         * Name "ABC" get one macro prop
         */
         struct _Name            *value;
-#ifdef NSE
-        Boolean                 imported:1;
-#endif
         Boolean                 exported:1;
         Boolean                 read_only:1;
         /*
         * This macro is defined conditionally
         */

@@ -460,13 +454,10 @@
                 mode_t                  mode;           /* Of file */
                 Boolean                 is_file:1;
                 Boolean                 is_dir:1;
                 Boolean                 is_sym_link:1;
                 Boolean                 is_precious:1;
-#ifdef NSE
-                Boolean                 is_derived_src:1;
-#endif
                 enum sccs_stat          has_sccs:2;
         }                       stat;
         /*
          * Count instances of :: definitions for this target
          */