doc: Remove usage guides with unimplemented features

Author: siegfriedweber

docs/modules/opensearch/pages/usage-guide/connecting-druid.adoc

@@ -2,12 +2,7 @@
 ** xref:opensearch:getting_started/installation.adoc[]
 ** xref:opensearch:getting_started/first_steps.adoc[]
 * xref:opensearch:usage-guide/index.adoc[]
-** xref:opensearch:usage-guide/listenerclass.adoc[]
 ** xref:opensearch:usage-guide/storage-resource-configuration.adoc[]
-** xref:opensearch:usage-guide/security.adoc[]
-** xref:opensearch:usage-guide/connecting-druid.adoc[]
-** xref:opensearch:usage-guide/monitoring.adoc[]
-** xref:opensearch:usage-guide/logging.adoc[]
 ** xref:opensearch:usage-guide/configuration-environment-overrides.adoc[]
 ** xref:opensearch:usage-guide/operations/index.adoc[]
 *** xref:opensearch:usage-guide/operations/cluster-operations.adoc[]