Remove Lokistack RetentionPolicy from ClusterLogging instance configuration (Web Console Step)

- Inside [Installing log storage|https://docs.openshift.com/container-platform/4.16/observability/logging/log_storage/installing-log-storage.html] section in [Installing Logging and the Loki Operator using the web console|https://docs.openshift.com/container-platform/4.16/observability/logging/log_storage/installing-log-storage.html#logging-loki-gui-install_installing-log-storage] the step no. 11.e : In the YAML field, replace the code with the following:, LokiStack RetentionPolicy mentioned.

 - Lokistack RetentionPolicy should not be part of ClusterLogging Instance configuration.

 - Here is the current configuration:

~~~
apiVersion: logging.openshift.io/v1
kind: ClusterLogging
metadata:
  name: instance 
  namespace: openshift-logging 
spec:
  collection:
    type: vector
  logStore:
    lokistack:
      name: logging-loki
    retentionPolicy:      <<=====|
      application:               |
        maxAge: 7d               |___This is a wrongly mentioned here
      audit:                     |
        maxAge: 7d               |
      infra:                     |
        maxAge: 7d        <<=====|
    type: lokistack
  visualization:
    type: ocp-console
    ocpConsole:
      logsLimit: 15
  managementState: Managed  
~~~

- Lokistack RetentionPolicy needs to be mentioned in the LokiStack CR.
- Please check Documentation (1) and KCS (2) for reference.
(1) https://docs.openshift.com/container-platform/4.16/observability/logging/logging-6.1/log6x-loki-6.1.html#logging-loki-retention_log6x-loki-6.1
(2) https://access.redhat.com/solutions/7053212

- Hence need to remove the retentionPolicy section from the ClusterLogging Instance CR.
- Here is the corrected configuration looks:

~~~
apiVersion: logging.openshift.io/v1
kind: ClusterLogging
metadata:
  name: instance 
  namespace: openshift-logging 
spec:
  collection:
    type: vector
  logStore:
    lokistack:
      name: logging-loki
    type: lokistack
  visualization:
    type: ocp-console
    ocpConsole:
      logsLimit: 15
  managementState: Managed 
~~~

Author: prithvipatil97

modules/logging-loki-gui-install.adoc

@@ -141,13 +141,6 @@ spec:
   logStore:
     lokistack:
       name: logging-loki
-    retentionPolicy:
-      application:
-        maxAge: 7d
-      audit:
-        maxAge: 7d
-      infra:
-        maxAge: 7d
     type: lokistack
   visualization:
     type: ocp-console