Switch GH actions Java version to Temurin. Remove unused field.

.github/workflows/maven.yml

@@ -23,7 +23,7 @@ jobs:
       - name: Set up JDK ${{ matrix.java }}
         uses: actions/setup-java@v3
         with:
-          distribution: 'zulu'
+          distribution: 'temurin'
           java-version: ${{ matrix.java }}
           cache: 'maven'
       - name: Build with Maven

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/http/RestTemplateEurekaHttpClient.java

@@ -30,8 +30,6 @@ import com.netflix.discovery.shared.transport.EurekaHttpClient;
 import com.netflix.discovery.shared.transport.EurekaHttpResponse;
 import com.netflix.discovery.shared.transport.EurekaHttpResponse.EurekaHttpResponseBuilder;
 import com.netflix.discovery.util.StringUtil;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 
 import org.springframework.http.HttpEntity;
 import org.springframework.http.HttpHeaders;
@@ -48,8 +46,6 @@ import static com.netflix.discovery.shared.transport.EurekaHttpResponse.anEureka
  */
 public class RestTemplateEurekaHttpClient implements EurekaHttpClient {
 
-	protected final Log logger = LogFactory.getLog(getClass());
-
 	private final RestTemplate restTemplate;
 
 	private String serviceUrl;