AETHER-2707 Mark ip-domain.dnn as mandatory; remove deprecated connectivity-service fields

Change-Id: I530c4e58a8ce0526fe0e6cf5d0c4109b62481e00
diff --git a/config-models/aether-4.x/Chart.yaml b/config-models/aether-4.x/Chart.yaml
index 784022e..416ac27 100644
--- a/config-models/aether-4.x/Chart.yaml
+++ b/config-models/aether-4.x/Chart.yaml
@@ -4,7 +4,7 @@
 
 apiVersion: v2
 name: config-model-aether-4
-version: 4.0.14
+version: 4.0.15
 kubeVersion: ">=1.18.0"
 appVersion: 4.0.0
 description: Aether config model