refactor: fix sonarcloud code smells

README.md

@@ -1,7 +1,4 @@
-
----
-
-# :rotating_light: This Repository is under active development. :rotating_light:
+[![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=cardano-foundation_cardano-rosetta-java&metric=alert_status)](https://sonarcloud.io/summary/new_code?id=cardano-foundation_cardano-rosetta-java)
 
 # Cardano Rosetta API Java implementation
 This repository provides a lightweight java implementation of the Rosetta API. It uses [Yaci-Store](https://github.com/bloxbean/yaci-store) as an indexer

api/src/main/java/org/cardanofoundation/rosetta/config/SpringWebConfig.java

@@ -4,7 +4,6 @@
 import java.util.Map;
 
 import lombok.RequiredArgsConstructor;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.core.convert.converter.Converter;
 import org.springframework.format.FormatterRegistry;