remove unused import statement

spring-cloud-alibaba-examples/sentinel-example/sentinel-feign-example/sentinel-feign-consumer-example/src/main/java/com/alibaba/cloud/examples/ConsumerApplication.java

@@ -1,9 +1,7 @@
 package com.alibaba.cloud.examples;
 
 import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.cloud.client.SpringCloudApplication;
-import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
 import org.springframework.cloud.openfeign.EnableFeignClients;
 
 /**
@@ -13,8 +11,8 @@ import org.springframework.cloud.openfeign.EnableFeignClients;
 @SpringCloudApplication
 public class ConsumerApplication {
 
-    public static void main(String[] args) {
-        SpringApplication.run(ConsumerApplication.class, args);
-    }
+	public static void main(String[] args) {
+		SpringApplication.run(ConsumerApplication.class, args);
+	}
 
 }