Problem: channel handshake open ack failed due signature verification error

[mmsqe]

signature verification failed after the removal of VerifyClientState and VerifyClientConsensusState in cosmos/ibc-go#7129

[yihuang]

The failed test case

The error message:

deliver_tx response contains error code: failed to execute message; message index: 0: channel handshake open ack failed: failed channel state verification for client (06-solomachine-0): signature verification failed