DATACMNS-1536 - Polishing.

Remove superfluous files.

doc-settings.xml

@@ -1,14 +0,0 @@
-<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
-          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-          xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0
-                      https://maven.apache.org/xsd/settings-1.0.0.xsd">
-
-    <servers>
-        <server>
-            <id>static-dot-s2</id>
-            <username>${env.DOC_USERNAME}</username>
-            <password>${env.DOC_PASSWORD}</password>
-        </server>
-    </servers>
-
-</settings>

index-multi.adoc

@@ -1,11 +0,0 @@
-= Spring Data Commons Reference Guide
-
-The reference documentation consists of the following sections:
-
-[horizontal]
-link:preface.html[Preface] :: Project metadata (version control, bug tracker, and so on).
-link:dependencies.html[Dependencies] :: Dependency Management with Spring Boot, Spring Framework.
-link:repositories.html[Repositories] :: Core concepts, defining queries, repository interfaces, and more.
-link:repository-projections.html[Projections] :: Interface-based projections, class-based projections, dynamic projections.
-link:query-by-example.html[Query by Example] :: Usage, `Example`, `ExampleMatcher`.
-link:auditing.html[Auditing] :: Annotation-based auditing metadata, interface-based auditing metadata, `AuditorAware`.