fix: remove transit_encryption != null, auth_token rotation support

Author: Steve-Louie-Bose

main.tf

@@ -134,7 +134,7 @@ resource "aws_elasticache_replication_group" "default" {
   notification_topic_arn     = var.notification_topic_arn
   engine_version             = var.engine_version
   at_rest_encryption_enabled = var.at_rest_encryption_enabled
-  transit_encryption_enabled = var.transit_encryption_enabled || var.auth_token != null
+  transit_encryption_enabled = var.transit_encryption_enabled
   kms_key_id                 = var.at_rest_encryption_enabled ? var.kms_key_id : null
   snapshot_name              = var.snapshot_name
   snapshot_arns              = var.snapshot_arns