GH-3029: Remove HanaDB vector store autoconfiguration

Fixes: #3029

- Remove HanaDB vector store autoconfiguration
- Remove the corresponding starter
- Update docs
- Update maven configuration
- Remove autoconfiguration and starter entries from Spring AI BOM

Signed-off-by: Soby Chacko <[email protected]>

Author: sobychacko

auto-configurations/vector-stores/spring-ai-autoconfigure-vector-store-hanadb/pom.xml

@@ -123,7 +123,6 @@
 		<module>auto-configurations/vector-stores/spring-ai-autoconfigure-vector-store-couchbase</module>
 		<module>auto-configurations/vector-stores/spring-ai-autoconfigure-vector-store-elasticsearch</module>
 		<module>auto-configurations/vector-stores/spring-ai-autoconfigure-vector-store-gemfire</module>
-		<module>auto-configurations/vector-stores/spring-ai-autoconfigure-vector-store-hanadb</module>
 		<module>auto-configurations/vector-stores/spring-ai-autoconfigure-vector-store-mariadb</module>
 		<module>auto-configurations/vector-stores/spring-ai-autoconfigure-vector-store-milvus</module>
 		<module>auto-configurations/vector-stores/spring-ai-autoconfigure-vector-store-mongodb-atlas</module>
@@ -146,7 +145,6 @@
 		<module>spring-ai-spring-boot-starters/spring-ai-starter-vector-store-couchbase</module>
 		<module>spring-ai-spring-boot-starters/spring-ai-starter-vector-store-elasticsearch</module>
 		<module>spring-ai-spring-boot-starters/spring-ai-starter-vector-store-gemfire</module>
-		<module>spring-ai-spring-boot-starters/spring-ai-starter-vector-store-hanadb</module>
 		<module>spring-ai-spring-boot-starters/spring-ai-starter-vector-store-mariadb</module>
 		<module>spring-ai-spring-boot-starters/spring-ai-starter-vector-store-milvus</module>
 		<module>spring-ai-spring-boot-starters/spring-ai-starter-vector-store-mongodb-atlas</module>