fix dynamic private ip

locals.tf

@@ -35,7 +35,6 @@ locals {
     for nodepool_name, nodepool_obj in var.agent_nodepools : {
       for index in range(lookup(nodepool_obj, "count", var.agents_num)) :
       format("%s-%s", nodepool_name, index) => {
-        index : index, # just for the compatibility with previous structure
         server_type : nodepool_obj.server_type
       }
     }