OS-7184 prototype

*** 4122,4133 ****
          mutex_destroy(&ill->ill_saved_ire_lock);
          mutex_destroy(&ill->ill_lock);
          rw_destroy(&ill->ill_mcast_lock);
          mutex_destroy(&ill->ill_mcast_serializer);
          list_destroy(&ill->ill_nce);
-         cv_destroy(&ill->ill_dlpi_capab_cv);
-         mutex_destroy(&ill->ill_dlpi_capab_lock);
  
          /*
           * Now we are done with the module close pieces that
           * need the netstack_t.
           */
--- 4122,4131 ----