Removal of code related to bbolt

[ohkinozomu]

According to the README, BoltDB (bbolt) is deprecated.
Would a pull request to remove bbolt code be accepted?

[sansmoraxz]

This project is using etcd-io/bbolt. Perhaps you were mixing up with boltdb/bolt

[ohkinozomu]

I am not talking about bolt/bbolt.
According to this project’s documentation, it says,

There is also a BoltDB hook which has been deprecated in favour of Badger