Function olm_sys::olm_account_forget_old_fallback_key

pub unsafe extern "C" fn olm_account_forget_old_fallback_key(
    account: *mut OlmAccount
)

Forget about the old fallback key. This should be called once you are reasonably certain that you will not receive any more messages that use the old fallback key (e.g. 5 minutes after the new fallback key has been published).