InnoDB cleanup: sync0arr.c: sync_array_cell_print(): Remove unused variable str

innobase/sync/sync0arr.c:
  sync_array_cell_print(): Remove unused variable str

innobase/sync/sync0arr.c

@@ -449,7 +449,6 @@ sync_array_cell_print(
 {
 	mutex_t*	mutex;
 	rw_lock_t*	rwlock;
-	char*		str __attribute__((unused)) = NULL;
 	ulint		type;
 
 	type = cell->request_type;