移除无用的引用

apm-server/src/main/java/com/persagy/ServerApplication.java

@@ -9,7 +9,6 @@ import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.cache.annotation.EnableCaching;
 import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
-import org.springframework.cloud.netflix.hystrix.EnableHystrix;
 import org.springframework.cloud.openfeign.EnableFeignClients;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.EnableAspectJAutoProxy;