Remove unnecessary mut (#5318)
Trivial leftover from https://github.com/paritytech/polkadot-sdk/pull/4844 Co-authored-by: Adrian Catangiu <[email protected]> Co-authored-by: Bastian Köcher <[email protected]>
Trivial leftover from https://github.com/paritytech/polkadot-sdk/pull/4844 Co-authored-by: Adrian Catangiu <[email protected]> Co-authored-by: Bastian Köcher <[email protected]>