curses vs !HILITE_STATUS

The curses interface wouldn't build with HILITE_STATUS disabled.  I
started adapting it to handle genl_status_update() but that was taking
too much effort with each niggling detail leading to another.  This
goes the opposite direction:  forcing the old STATUS_VIA_WINDOWPORT
behavior without having that #define available.  That dragged along a
bunch of unexpected changes too.

win/curses/cursmain.c

@@ -354,7 +354,8 @@ curses_destroy_nhwindow(winid wid)
         curses_teardown_messages(); /* discard ^P message history data */
         break;
     case STATUS_WIN:
-        curses_status_finish(); /* discard cached status data */
+        if (VIA_WINDOWPORT())
+            curses_status_finish(); /* discard cached status data */
         break;
     case INV_WIN:
         iflags.perm_invent = 0; /* avoid unexpected update_inventory() */