Remove redundant suppression

See gh-26448

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/orm/jpa/AbstractJpaAutoConfigurationTests.java

@@ -420,7 +420,6 @@ abstract class AbstractJpaAutoConfigurationTests {
 
 	}
 
-	@SuppressWarnings("serial")
 	static class CustomJpaTransactionManager extends JpaTransactionManager {
 
 	}

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/ResourcePropertiesBindingTests.java

@@ -61,7 +61,6 @@ class ResourcePropertiesBindingTests {
 		};
 	}
 
-	@SuppressWarnings("deprecation")
 	@Configuration(proxyBeanMethods = false)
 	@EnableConfigurationProperties(ResourceProperties.class)
 	static class TestConfiguration {

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfigurationTests.java

@@ -847,7 +847,6 @@ class WebMvcAutoConfigurationTests {
 
 	@Test
 	@Deprecated
-	@SuppressWarnings("deprecation")
 	void useSuffixPatternMatch() {
 		this.contextRunner.withPropertyValues("spring.mvc.pathmatch.use-suffix-pattern:true",
 				"spring.mvc.pathmatch.use-registered-suffix-pattern:true").run((context) -> {

spring-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/context/ConfigFileApplicationContextInitializerTests.java

@@ -34,7 +34,6 @@ import static org.assertj.core.api.Assertions.assertThat;
  * @author Phillip Webb
  */
 @Deprecated
-@SuppressWarnings("deprecation")
 @ExtendWith(SpringExtension.class)
 @DirtiesContext
 @ContextConfiguration(classes = ConfigFileApplicationContextInitializerTests.Config.class,

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jta/atomikos/AtomikosConnectionFactoryBeanTests.java

@@ -42,7 +42,6 @@ class AtomikosConnectionFactoryBeanTests {
 		verify(bean).close();
 	}
 
-	@SuppressWarnings("serial")
 	static class MockAtomikosConnectionFactoryBean extends AtomikosConnectionFactoryBean {
 
 		@Override

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jta/atomikos/AtomikosDataSourceBeanTests.java

@@ -42,7 +42,6 @@ class AtomikosDataSourceBeanTests {
 		verify(bean).close();
 	}
 
-	@SuppressWarnings("serial")
 	static class MockAtomikosDataSourceBean extends AtomikosDataSourceBean {
 
 		@Override

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/web/servlet/context/AnnotationConfigServletWebServerApplicationContextTests.java

@@ -142,7 +142,6 @@ class AnnotationConfigServletWebServerApplicationContextTests {
 	}
 
 	@Component
-	@SuppressWarnings("serial")
 	static class ExampleServletWithAutowired extends GenericServlet {
 
 		@Autowired

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/web/servlet/mock/MockServlet.java

@@ -28,7 +28,6 @@ import javax.servlet.ServletResponse;
  *
  * @author Phillip Webb
  */
-@SuppressWarnings("serial")
 public class MockServlet extends GenericServlet {
 
 	@Override

spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-data-couchbase/src/test/java/smoketest/data/couchbase/SampleCouchbaseApplicationTests.java

@@ -44,7 +44,6 @@ class SampleCouchbaseApplicationTests {
 	}
 
 	private boolean serverNotRunning(RuntimeException ex) {
-		@SuppressWarnings("serial")
 		NestedCheckedException nested = new NestedCheckedException("failed", ex) {
 		};
 		if (nested.contains(FeatureNotAvailableException.class)) {

spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-liquibase/src/test/java/smoketest/liquibase/SampleLiquibaseApplicationTests.java

@@ -67,7 +67,6 @@ class SampleLiquibaseApplicationTests {
 				.contains("Successfully released change log lock");
 	}
 
-	@SuppressWarnings("serial")
 	private boolean serverNotRunning(IllegalStateException ex) {
 		NestedCheckedException nested = new NestedCheckedException("failed", ex) {
 		};