MINOR: Update rocksDb memory management doc (#11528)
MINOR: Update rocksDb memory management doc (#11528)

In the RocksDb memory management doc, we mentioned in the footnote that there's a rocksdb bug caused the strict_capacity_limit boolean parameter in the LRUCache constructor can't be set to true. However, the bug is already fixed in 6.11.4, and we're using 6.22 now, so the note can be removed.

Reviewer: Bruno Cadonna <8548e651fb34cb712e02d8943f3f81ebe776615b@apache.org>
lindong28/kafka,lindong28/kafka,apache/kafka,apache/kafka,TiVo/kafka,apache/kafka,lindong28/kafka,TiVo/kafka,guozhangwang/kafka,guozhangwang/kafka,guozhangwang/kafka,lindong28/kafka,TiVo/kafka,TiVo/kafka,apache/kafka,guozhangwang/kafka