Remove xls settings page

Fixes #11319

docs/index.asciidoc

@@ -97,6 +97,9 @@ include::static/upgrading.asciidoc[]
 :edit_url!:
 include::static/configuration.asciidoc[]
 
+:edit_url!:
+include::static/security/logstash.asciidoc[]
+
 // Advanced Logstash Configurion
 
 :edit_url!:
@@ -126,12 +129,6 @@ include::static/ls-ls-config.asciidoc[]
 :edit_url!:
 include::static/management/configuring-centralized-pipelines.asciidoc[]
 
-:edit_url!:
-include::static/security/logstash.asciidoc[]
-
-:edit_url!:
-include::static/setup/configuring-xls.asciidoc[]
-
 :edit_url!:
 include::static/field-reference.asciidoc[]
 

docs/static/settings-file.asciidoc

@@ -63,7 +63,7 @@ modules:
 
 IMPORTANT: If the <<command-line-flags,command-line flag>> `--modules` is used, any modules defined in the `logstash.yml` file will be ignored.
 
-The `logstash.yml` file includes the following settings. If you are using X-Pack, also see {logstash-ref}/settings-xpack.html[X-Pack Settings in Logstash].
+The `logstash.yml` file includes the following settings. 
 
 [options="header"]
 |=======================================================================

docs/static/setup/configuring-xls.asciidoc

@@ -1,11 +0,0 @@
-[role="xpack"]
-[[settings-xpack]]
-=== {xpack} Settings in Logstash
-[subs="attributes"]
-++++
-<titleabbrev>{xpack} Settings</titleabbrev>
-++++
-
-include::{asciidoc-dir}/../../shared/settings.asciidoc[]
-
-For more Logstash configuration settings, see <<logstash-settings-file>>.