Remove includes

docs/modules/ROOT/pages/README.adoc

@@ -2,7 +2,6 @@ image::https://github.com/spring-cloud/spring-cloud-gateway/workflows/Build/badg
 image::https://codecov.io/gh/spring-cloud/spring-cloud-gateway/branch/main/graph/badge.svg["Codecov", link="https://codecov.io/gh/spring-cloud/spring-cloud-gateway/branch/main"]
 
 
-include::intro.adoc[]
 
 [[features]]
 = Features

docs/modules/ROOT/pages/appendix.adoc

@@ -3,7 +3,6 @@
 [[common-application-properties]]
 = Common application properties
 
-include::_attributes.adoc[]
 
 Various properties can be specified inside your `application.properties` file, inside your `application.yml` file, or as command line switches.
 This appendix provides a list of common {project-full-name} properties and references to the underlying classes that consume them.
@@ -11,7 +10,6 @@ This appendix provides a list of common {project-full-name} properties and refer
 NOTE: Property contributions can come from additional jar files on your classpath, so you should not consider this an exhaustive list.
 Also, you can define your own properties.
 
-include::_configprops.adoc[]
 
 include::{project-root}/docs/target/observability/_metrics.adoc[]
 

docs/modules/ROOT/pages/index.adoc

@@ -1 +0,0 @@
-include::spring-cloud-gateway.adoc[]

docs/modules/ROOT/pages/spring-cloud-gateway.adoc

@@ -1,8 +1,6 @@
 [[spring-cloud-gateway]]
 = Spring Cloud Gateway
-include::_attributes.adoc[]
 
 *{spring-cloud-version}*
 
-include::intro.adoc[]