### Summary There is unused error in AccountingOracle contract - [IncorrectOracleMigration](https://github.com/lidofinance/core/blob/feat/vaults/contracts/0.8.9/oracle/AccountingOracle.sol#L55C11-L55C35) ### Expected Behavior - ### Potential Impact - ### Steps to Reproduce - ### Possible Solutions remove it ### Guidelines - [x] I agree to follow [Code of Conduct](https://github.com/lidofinance/core/blob/master/CODE_OF_CONDUCT.md). - [x] I have read [Lido Contribution Guide](https://github.com/lidofinance/core/blob/master/CONTRIBUTING.md).