After introducing GCRA algorithm into redis https://github.com/redis/redis/pull/14826 and subsequent introduction of new RATE_LIMIT object type - https://github.com/redis/redis/pull/14905. It was internally decided not to introduce GCRA into the new release. As still no decision is made on whether it will be kept or not in the future, this PR only makes the code related to GCRA dead - commands are inaccessible and AOF/RDB load+save is disabled. --------- Co-authored-by: debing.sun <debing.sun@redis.com>