Cleanup bridges tests: with-grandpa-chain case (#2763)
related to
https://github.com/paritytech/parity-bridges-common/issues/2739
Co-authored-by: Branislav Kontur <[email protected]>
related to
https://github.com/paritytech/parity-bridges-common/issues/2739
Co-authored-by: Branislav Kontur <[email protected]>