Remove useless @ConfigurationProperties

Fixes gh-1972

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/mvc/ManagementErrorEndpoint.java

@@ -21,7 +21,6 @@ import java.util.Map;
 import org.springframework.boot.actuate.endpoint.Endpoint;
 import org.springframework.boot.autoconfigure.web.ErrorAttributes;
 import org.springframework.boot.autoconfigure.web.ErrorController;
-import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.util.Assert;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.ResponseBody;
@@ -34,7 +33,6 @@ import org.springframework.web.context.request.RequestContextHolder;
  *
  * @author Dave Syer
  */
-@ConfigurationProperties(prefix = "error")
 public class ManagementErrorEndpoint implements MvcEndpoint {
 
 	private final ErrorAttributes errorAttributes;