NRL-846 Remove unused local

Author: axelkrastek1-nhs

terraform/infrastructure/locals.tf

@@ -36,7 +36,6 @@ locals {
   aws_account_id = data.aws_caller_identity.current.account_id
 
   auth_store_id              = var.use_shared_resources ? data.aws_s3_bucket.authorization-store[0].id : module.ephemeral-s3-permission-store[0].bucket_id
-  auth_store_arn             = var.use_shared_resources ? data.aws_s3_bucket.authorization-store[0].arn : module.ephemeral-s3-permission-store[0].bucket_arn
   auth_store_read_policy_arn = var.use_shared_resources ? data.aws_iam_policy.auth-store-read-policy[0].arn : module.ephemeral-s3-permission-store[0].bucket_read_policy_arn
 
   pointers_table_name             = var.use_shared_resources ? data.aws_dynamodb_table.pointers-table[0].name : module.ephemeral-pointers-table[0].table_name