fix format

Signed-off-by: jiangyuan <[email protected]>

Author: JoeCqupt

spring-cloud-gateway-server-mvc/src/test/java/org/springframework/cloud/gateway/server/mvc/filter/RetryFilterFunctionTests.java

@@ -59,7 +59,6 @@
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.client.RestClient;
-import org.springframework.web.servlet.function.HandlerFunction;
 import org.springframework.web.servlet.function.RouterFunction;
 import org.springframework.web.servlet.function.ServerResponse;