Address race conditions in ICS misbehaviour handling

[sainoe]

Problem

In the event of a IBC light client attack on the consumer, the associated client hosted on the provider can get frozen due to either the reception of an ICS misbehaviour message or a canonical IBC misbehaviour message. However, this creates a race condition that could cause the ICS misbehavior handling to fail. As a result, the byzantine validators responsible for the light client attack may not be adequately jailed as intended.

Closing criteria

Remove the ICS misbehavior handling logic updating the IBC client status