LD39/game/Assets/Scripts/Enemy/EnemyManager.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class EnemyManager : MonoBehaviour {

    private EnemySpawner[] enemySpawners;

	// Use this for initialization
	void Start () 
    {
        enemySpawners= GameObject.FindObjectsOfType<EnemySpawner>();
	}
	
	// Update is called once per frame
	void Update () 
    {
		foreach(EnemySpawner spawner in enemySpawners)
        {
            // Just do nothing, no need to manage anything actually...
        }
	}
}