Remove useless cast

The number of nodes can be added to the details without the need to cast
it.

Closes gh-10078

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/health/Neo4jHealthIndicator.java

@@ -27,6 +27,7 @@ import org.neo4j.ogm.session.SessionFactory;
  * statement.
  *
  * @author Eric Spiegelberg
+ * @author Stephane Nicoll
  * @since 2.0.0
  */
 public class Neo4jHealthIndicator extends AbstractHealthIndicator {
@@ -51,8 +52,8 @@ public class Neo4jHealthIndicator extends AbstractHealthIndicator {
 	protected void doHealthCheck(Health.Builder builder) throws Exception {
 		Session session = this.sessionFactory.openSession();
 		Result result = session.query(CYPHER, Collections.emptyMap());
-		int nodes = (int) result.queryResults().iterator().next().get("nodes");
-		builder.up().withDetail("nodes", nodes);
+		builder.up().withDetail("nodes", result.queryResults()
+				.iterator().next().get("nodes"));
 	}
 
 }