Merge pull request #49278 from l2yujw

* gh-49278:
  Remove Jetty test idle timeout configuration

Closes gh-49278

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/web/embedded/jetty/JettyServletWebServerFactoryTests.java

@@ -98,16 +98,7 @@ class JettyServletWebServerFactoryTests extends AbstractServletWebServerFactoryT
 
 	@Override
 	protected JettyServletWebServerFactory getFactory() {
-		JettyServletWebServerFactory factory = new JettyServletWebServerFactory(0);
-		factory.addServerCustomizers((server) -> {
-			for (Connector connector : server.getConnectors()) {
-				if (connector instanceof ServerConnector serverConnector) {
-					// TODO Set the shutdown idle timeout in main code?
-					serverConnector.setShutdownIdleTimeout(10000);
-				}
-			}
-		});
-		return factory;
+		return new JettyServletWebServerFactory(0);
 	}
 
 	@Override