NRL-1664 Fix domain name of perftest

Author: axelkrastek1-nhs

terraform/infrastructure/etc/perftest.tfvars

@@ -1,9 +1,8 @@
 account_name     = "perftest"
 aws_account_name = "test"
 
-domain              = "api.perftest.record-locator.national.nhs.uk"
-deletion_protection = true
-
+domain               = "perftest.record-locator.national.nhs.uk"
 public_domain        = "perftest.api.service.nhs.uk"
+deletion_protection  = true
 log_retention_period = 30
 enable_reporting     = false