Update XOS and services to use newer logging components

Change-Id: I6ed3e964538417c655dbb888d1c08d1392293e5c
diff --git a/xos-services/volt/Chart.yaml b/xos-services/volt/Chart.yaml
index 1f9724f..8485d58 100644
--- a/xos-services/volt/Chart.yaml
+++ b/xos-services/volt/Chart.yaml
@@ -17,5 +17,5 @@
 description: A Helm chart for XOS's "olt-service" service
 icon: https://guide.opencord.org/logos/cord.svg
 
-version: 2.1.3
-appVersion: 2.1.5
+version: 2.1.4
+appVersion: 2.1.8
diff --git a/xos-services/volt/templates/_helpers.tpl b/xos-services/volt/templates/_helpers.tpl
index 114b22b..93b3f29 100644
--- a/xos-services/volt/templates/_helpers.tpl
+++ b/xos-services/volt/templates/_helpers.tpl
@@ -66,12 +66,12 @@
       maxBytes: 10485760
       backupCount: 5
     kafka:
-      class: kafkaloghandler.kafkaloghandler.KafkaLogHandler
+      class: kafkaloghandler.KafkaLogHandler
       bootstrap_servers:
         - "cord-kafka:9092"
       topic: xos.log.volt
   loggers:
-    'multistructlog':
+    '':
       handlers:
         - console
         - file