[ENG-11531](https://linear.app/comm/issue/ENG-11531/migrate-the-full-crypto-api-to-vodozemac).
Olm had two methods:
- create_inbound (only pre-key message)
- create_inbound_from (pre-key message and identity key)
Vodozemac supports only one version, with an identity key, so we need to deprecate `create_inbound`.
The only tricky part is handling of `INITIAL_NOTIFICATIONS_ENCRYPTED_MESSAGE`, but looking at the code, it should always happen after handling `SIGNED_IDENTITY_KEYS_BLOB`, so it should work.