[7.x] [Backport] remove incorrect config (#55427)

docs/setup/settings.asciidoc

@@ -236,23 +236,25 @@ Kibana, the server needs to be CORS-enabled so Kibana can download the file. The
 following example shows a valid regionmap configuration.
 +
 --
-    map.regionmap:
+    map
       includeElasticMapsService: false
-      layers:
-         - name: "Departments of France"
-           url: "http://my.cors.enabled.server.org/france_departements.geojson"
-           attribution: "INRAP"
-           fields:
-              - name: "department"
+      regionmap:
+        layers:
+          - name: "Departments of France"
+            url: "http://my.cors.enabled.server.org/france_departements.geojson"
+            attribution: "INRAP"
+            fields:
+               - name: "department"
                 description: "Full department name"
-              - name: "INSEE"
+               - name: "INSEE"
                 description: "INSEE numeric identifier"
 --
 
-[[regionmap-ES-map]]`map.regionmap.includeElasticMapsService:`:: Turns on or off
+[[regionmap-ES-map]]`map.includeElasticMapsService:`:: Turns on or off
 whether layers from the Elastic Maps Service should be included in the vector
 layer option list. Supported on {ece}. By turning this off, only the layers that
 are configured here will be included. The default is `true`.
+This also affects whether tile-service from the Elastic Maps Service will be available.
 
 [[regionmap-attribution]]`map.regionmap.layers[].attribution:`:: Optional.
 References the originating source of the geojson file. Supported on {ece}.

src/dev/build/tasks/os_packages/docker_generator/resources/bin/kibana-docker

@@ -59,7 +59,6 @@ kibana_vars=(
     path.data
     pid.file
     regionmap
-    regionmap.includeElasticMapsService
     server.basePath
     server.customResponseHeaders
     server.defaultRoute