Delete esxi from cluster

Hello everyone,

I have a cluster with 5 esxi. I want to delete one esxi from my cluster. On this cluster, have just one vm (turn off). Actually, this esxi is on "maintenance mode".

So my question is, i just need to right clik on this esxi and choose  "delete from inventory" or

Choose "Connexion" than "disconnect" to finish by "delete from inventory" ?

Thanks for help.