Remove unnecessary `final` modifiers

See gh-38739

spring-boot-project/spring-boot-devtools/src/main/java/org/springframework/boot/devtools/env/DevToolsHomePropertiesPostProcessor.java

@@ -144,7 +144,7 @@ public class DevToolsHomePropertiesPostProcessor implements EnvironmentPostProce
 	}
 
 	@SafeVarargs
-	private final File getHomeDirectory(Supplier<String>... pathSuppliers) {
+	private File getHomeDirectory(Supplier<String>... pathSuppliers) {
 		for (Supplier<String> pathSupplier : pathSuppliers) {
 			String path = pathSupplier.get();
 			if (StringUtils.hasText(path)) {

spring-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/json/AbstractJsonMarshalTesterTests.java

@@ -169,7 +169,7 @@ abstract class AbstractJsonMarshalTesterTests {
 		assertThat(tester.parse(MAP_JSON)).asMap().containsEntry("a", OBJECT);
 	}
 
-	protected static final ExampleObject createExampleObject(String name, int age) {
+	protected static ExampleObject createExampleObject(String name, int age) {
 		ExampleObject exampleObject = new ExampleObject();
 		exampleObject.setName(name);
 		exampleObject.setAge(age);