Applications are strongly encouraged to send this message when they don't need the given chain
anymore.
If the chain isn't known by the extension, this message is silently discarded. This is
necessary in order to avoid race conditions, as the extension might have sent a
ToApplicationError message at the same time as this message has been sent.
Destroy the given chain.
Applications are strongly encouraged to send this message when they don't need the given chain anymore.
If the chain isn't known by the extension, this message is silently discarded. This is necessary in order to avoid race conditions, as the extension might have sent a ToApplicationError message at the same time as this message has been sent.