public void unregisterTaskDef(String taskType) {
        Preconditions.checkArgument(StringUtils.isNotBlank(taskType), "Task type cannot be blank");
        stub.deleteTask(
                MetadataServicePb.DeleteTaskRequest.newBuilder().setTaskType(taskType).build());
    }
Removes the task definition of a task type from the conductor server. Use with caution.

@param taskType Task type to be unregistered.
grpc-client/src/main/java/com/netflix/conductor/client/grpc/MetadataClient.java