(chore)engine: simple example chaosengines by removing ref to lib image and auxiliary apps (#392)

Signed-off-by: ksatchit <karthik.s@mayadata.io>

charts/generic/pod-network-duplication/engine.yaml

@@ -11,8 +11,6 @@ spec:
   annotationCheck: 'true'
   # It can be active/stop
   engineState: 'active'
-  #ex. values: ns1:name=percona,ns2:run=nginx 
-  auxiliaryAppInfo: ''
   monitoring: false
   appinfo: 
     appns: 'default'
@@ -28,9 +26,6 @@ spec:
             - name: TOTAL_CHAOS_DURATION
               value: '60' # in seconds
 
-            - name: LIB_IMAGE
-              value: 'litmuschaos/go-runner:latest'
-
             #Network interface inside target container
             - name: NETWORK_INTERFACE
               value: 'eth0'