Disable kafka by default

Change-Id: Id3fec2ed777b7150228db62dd2ebad661eb4790b
diff --git a/sdcore-helm-charts/values.yaml b/sdcore-helm-charts/values.yaml
index b6a2fbf..3eb0837 100644
--- a/sdcore-helm-charts/values.yaml
+++ b/sdcore-helm-charts/values.yaml
@@ -35,7 +35,7 @@
 5g-control-plane:
   enable5G: true
   kafka:
-    deploy: true
+    deploy: false
     persistence:
       enabled: false
     zookeeper: