@Override
    public boolean removeTask(String taskId) {
        TaskModel task = getTask(taskId);
        if (task == null) {
            LOGGER.warn("No such task found by id {}", taskId);
            return false;
        }
        return removeTask(task);
    }
This is a dummy implementation and this feature is not implemented for Cassandra backed
Conductor
cassandra-persistence/src/main/java/com/netflix/conductor/cassandra/dao/CassandraExecutionDAO.java