cleanup

sql/mysql_priv.h:
  remove reference to variable removed in the previous patch

sql/mysql_priv.h

@@ -1305,7 +1305,6 @@ extern my_bool locked_in_memory;
 extern bool opt_using_transactions, mysqld_embedded;
 extern bool using_update_log, opt_large_files, server_id_supplied;
 extern bool opt_log, opt_update_log, opt_bin_log, opt_slow_log, opt_error_log;
-extern bool opt_old_log_format;
 extern bool opt_disable_networking, opt_skip_show_db;
 extern my_bool opt_character_set_client_handshake;
 extern bool volatile abort_loop, shutdown_in_progress, grant_option;