private void cancelConsumerGroupJoinTimeout(
        String groupId,
        String memberId
    ) {
        timer.cancel(consumerGroupJoinKey(groupId, memberId));
    }
Cancels the join timeout of the member.

@param groupId       The group id.
@param memberId      The member id.
group-coordinator/src/main/java/org/apache/kafka/coordinator/group/GroupMetadataManager.java