[Enhancement] Reduce unnecessary switches

[LetLetMe]

Before Creating the Enhancement Request

• I have confirmed that this should be classified as an enhancement rather than a bug/feature.

Summary

Rocksdb cq升级过程中有一些判断是否需要转换元数据和offset的开关，之前处于保护的逻辑添加了这些开关，但是似乎有点太多了。现在把他们都去掉，统一使用storeType这个开关，也就是当storeType=defaultRocksdb时，会统一校验元数据和offset是否需要转换

In the process of upgrading RocksDB CQ, there were several switches added to determine whether metadata and offsets needed conversion. These switches were initially added as a protective measure, but it seems there are too many of them now. We are now removing all of them and using a single switch, storeType. When storeType=defaultRocksdb, it will uniformly check whether metadata and offsets need conversion.

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Additional Context

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