Remove unnecessary ConfigurationProperties

Closes gh-13412

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/jmx/AuditEventsJmxEndpoint.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,7 +25,6 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 
 import org.springframework.boot.actuate.audit.AuditEvent;
 import org.springframework.boot.actuate.audit.AuditEventRepository;
-import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.jmx.export.annotation.ManagedOperation;
 import org.springframework.util.Assert;
 import org.springframework.util.StringUtils;
@@ -36,7 +35,6 @@ import org.springframework.util.StringUtils;
  * @author Vedran Pavic
  * @since 1.5.0
  */
-@ConfigurationProperties(prefix = "endpoints.auditevents")
 public class AuditEventsJmxEndpoint extends AbstractJmxEndpoint {
 
 	private static final String DATE_FORMAT = "yyyy-MM-dd'T'HH:mm:ssZ";