Removes test for warnings for old artifacts

See gh-3858

Author: spencergibb

spring-cloud-gateway-sample/src/test/java/org/springframework/cloud/gateway/sample/GatewaySampleApplicationTests.java

@@ -26,13 +26,10 @@
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
-import org.junit.jupiter.api.extension.ExtendWith;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.boot.test.system.CapturedOutput;
-import org.springframework.boot.test.system.OutputCaptureExtension;
 import org.springframework.boot.web.server.test.LocalServerPort;
 import org.springframework.cloud.client.DefaultServiceInstance;
 import org.springframework.cloud.gateway.config.GatewayMetricsProperties;
@@ -55,7 +52,6 @@
  */
 @SpringBootTest(classes = { GatewaySampleApplicationTests.TestConfig.class }, webEnvironment = RANDOM_PORT,
 		properties = { "management.endpoint.gateway.enabled=true", "management.server.port=${test.port}" })
-@ExtendWith(OutputCaptureExtension.class)
 public class GatewaySampleApplicationTests {
 
 	protected static int managementPort;
@@ -263,12 +259,6 @@ public void actuatorMetrics() {
 			});
 	}
 
-	@Test
-	void usesNewStarter(CapturedOutput output) {
-		assertThat(output).doesNotContain("spring-cloud-starter-gateway is deprecated")
-			.doesNotContain("spring-cloud-gateway-server is deprecated");
-	}
-
 	@Configuration(proxyBeanMethods = false)
 	@EnableAutoConfiguration
 	@LoadBalancerClient(name = "httpbin", configuration = LoadBalancerConfig.class)