deleteContactChannel
inline suspend fun SsmContactsClient.deleteContactChannel(crossinline block: DeleteContactChannelRequest.Builder.() -> Unit): DeleteContactChannelResponse
To no longer receive engagements on a contact channel, you can delete the channel from a contact. Deleting the contact channel removes it from the contact's engagement plan. If you delete the only contact channel for a contact, you won't be able to engage that contact during an incident.