Revert "Retry when Spring tests fails to start a Server with a rand…

…om port obtained in advance (line#4395)"

This reverts commit 8e96b96.
This causes build failure after Spring Boot is upgrade to 2.7.3 from 2.7.2.

spring/boot2-autoconfigure/src/main/java/com/linecorp/armeria/spring/AbstractArmeriaAutoConfiguration.java

@@ -107,7 +107,6 @@ public Server armeriaServer(
      * Wrap {@link Server} with {@link SmartLifecycle}.
      */
     @Bean
-    @ConditionalOnMissingBean(SmartLifecycle.class)
     public SmartLifecycle armeriaServerGracefulShutdownLifecycle(Server server) {
         return new ArmeriaServerGracefulShutdownLifecycle(server);
     }

spring/boot2-autoconfigure/src/test/java/com/linecorp/armeria/spring/ArmeriaSettingsConfigurationPriorityTest.java

@@ -24,7 +24,6 @@
 import org.junit.runner.RunWith;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.context.SmartLifecycle;
 import org.springframework.context.annotation.Bean;
 import org.springframework.test.annotation.DirtiesContext;
 import org.springframework.test.context.ActiveProfiles;
@@ -47,11 +46,6 @@ static class TestConfiguration {
         ArmeriaServerConfigurator maxNumConnectionsConfigurator() {
             return builder -> builder.maxNumConnections(16);
         }
-
-        @Bean
-        SmartLifecycle smartLifecycle(Server server) {
-            return new RetryableArmeriaServerGracefulShutdownLifecycle(server, 8);
-        }
     }
 
     @Inject

spring/boot2-autoconfigure/src/test/java/com/linecorp/armeria/spring/LocalArmeriaPortHttpsTest.java

@@ -24,8 +24,6 @@
 import org.junit.runner.RunWith;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.context.SmartLifecycle;
-import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Import;
 import org.springframework.test.annotation.DirtiesContext;
 import org.springframework.test.context.ActiveProfiles;
@@ -52,13 +50,7 @@ public class LocalArmeriaPortHttpsTest {
 
     @SpringBootApplication
     @Import(ArmeriaOkServiceConfiguration.class)
-    static class TestConfiguration {
-
-        @Bean
-        SmartLifecycle smartLifecycle(Server server) {
-            return new RetryableArmeriaServerGracefulShutdownLifecycle(server, 8);
-        }
-    }
+    static class TestConfiguration {}
 
     private static final ClientFactory clientFactory =
             ClientFactory.builder()