Cleanup docs from moved metrics contents

Closes #1069

Signed-off-by: Alexander Schwartz <[email protected]>

doc/kubernetes/modules/ROOT/nav.adoc

@@ -16,12 +16,6 @@ include::partial$subnav-openshift.adoc[]
 ** xref:running/infinispan-deployment.adoc[]
 ** xref:running/timeout_tuning.adoc[]
 ** xref:running/jvm/jvm_options.adoc[]
-** Metrics
-*** xref:running/metrics/jvm_metrics.adoc[]
-*** xref:running/metrics/database_metrics.adoc[]
-*** xref:running/metrics/keycloak_cluster.adoc[]
-*** xref:running/metrics/keycloak_with_external_infinispan.adoc[]
-*** xref:running/metrics/external_infinispan.adoc[]
 * xref:customizing-deployment.adoc[]
 * xref:storage-configurations.adoc[]
 ** xref:storage/postgres.adoc[]

doc/kubernetes/modules/ROOT/pages/running/index.adoc

@@ -1,6 +1,6 @@
 = Running in production
 :description: This summarizes different topics on how to run {project_name} in production.
-:page-aliases: running/deployments/active-passive-sync.adoc, running/aurora-multi-az.adoc, running/infinispan-crossdc-deployment.adoc, running/keycloak-with-external-infinispan.adoc, running/keycloak-deployment.adoc, running/fail-over.adoc, running/switch-over.adoc, running/network-partition.adoc, running/switch-back.adoc, running/concepts/database-connections.adoc, running/concepts/threads.adoc, running/concepts/index.adoc, running/loadbalancing.adoc, running/split-brain-stonith.adoc, running/synchronize-sites.adoc, running/take-active-site-offline.adoc, running/bring-active-site-online.adoc, running/metrics/keycloak_service_level_indicators.adoc
+:page-aliases: running/deployments/active-passive-sync.adoc, running/aurora-multi-az.adoc, running/infinispan-crossdc-deployment.adoc, running/keycloak-with-external-infinispan.adoc, running/keycloak-deployment.adoc, running/fail-over.adoc, running/switch-over.adoc, running/network-partition.adoc, running/switch-back.adoc, running/concepts/database-connections.adoc, running/concepts/threads.adoc, running/concepts/index.adoc, running/loadbalancing.adoc, running/split-brain-stonith.adoc, running/synchronize-sites.adoc, running/take-active-site-offline.adoc, running/bring-active-site-online.adoc, running/metrics/keycloak_service_level_indicators.adoc, running/metrics/database_metrics.adoc, running/metrics/external_infinispan.adoc, running/metrics/jvm_metrics.adoc, running/metrics/keycloak_cluster.adoc, running/metrics/keycloak_with_external_infinispan.adoc
 
 {description}
 It summarizes the logic which is condensed in the Helm charts and scripts in this project to make it accessible as independent knowledge to adapt it to other environments.
@@ -28,8 +28,3 @@ These guides will eventually be published Keycloak's main web page.
 
 IMPORTANT: Most of the guides are now available as the Observability guides on https://www.keycloak.org/nightly/guides#observability[Keycloak's main website]
 
-* xref:running/metrics/jvm_metrics.adoc[]
-* xref:running/metrics/database_metrics.adoc[]
-* xref:running/metrics/keycloak_cluster.adoc[]
-* xref:running/metrics/keycloak_with_external_infinispan.adoc[]
-* xref:running/metrics/external_infinispan.adoc[]