chore: remove IAM user + group

terraform/batch/main.tf

@@ -70,46 +70,3 @@ resource "aws_iam_role_policy_attachment" "s3_policy_attachment" {
   role       = split("/", module.batch_eventbridge.batch_job_role_arn)[1]
   policy_arn = aws_iam_policy.s3_access.arn
 }
-
-# IAM User Group
-resource "aws_iam_group" "group" {
-  name = "${var.domain}-${var.service_subdomain}-user-group"
-  path = "/"
-}
-
-# Attach S3 policy to group
-resource "aws_iam_group_policy_attachment" "group_s3_access_attachment" {
-  group      = aws_iam_group.group.name
-  policy_arn = aws_iam_policy.s3_access.arn
-}
-
-# Attach Secrets Manager policy to group
-resource "aws_iam_group_policy_attachment" "group_secrets_attachment" {
-  group      = aws_iam_group.group.name
-  policy_arn = aws_iam_policy.secrets_access.arn
-}
-
-# IAM User
-resource "aws_iam_user" "user" {
-  name = "${var.domain}-${var.service_subdomain}"
-  path = "/"
-}
-
-# Assign IAM User to group
-resource "aws_iam_user_group_membership" "user_group_attach" {
-  user = aws_iam_user.user.name
-
-  groups = [
-    aws_iam_group.group.name
-  ]
-}
-
-# IAM Key Rotation Module
-module "iam_key_rotation" {
-  source = "git::https://github.com/ONS-Innovation/keh-aws-iam-key-rotation.git?ref=v0.1.1"
-
-  iam_username          = aws_iam_user.user.name
-  access_key_secret_arn = aws_secretsmanager_secret.access_key.arn
-  secret_key_secret_arn = aws_secretsmanager_secret.secret_key.arn
-  rotation_in_days      = 45
-}