Simplify some code

See gh-17852

spring-boot-project/spring-boot-devtools/src/test/java/org/springframework/boot/devtools/autoconfigure/LocalDevToolsAutoConfigurationTests.java

@@ -252,8 +252,7 @@ class LocalDevToolsAutoConfigurationTests {
 		Restarter.initialize(new String[0], false, new MockRestartInitializer(), false);
 		SpringApplication application = new SpringApplication(config);
 		application.setDefaultProperties(getDefaultProperties(properties));
-		ConfigurableApplicationContext context = application.run(args);
-		return context;
+		return application.run(args);
 	}
 
 	private Map<String, Object> getDefaultProperties(Map<String, Object> specifiedProperties) {

spring-boot-project/spring-boot-devtools/src/test/java/org/springframework/boot/devtools/remote/client/ClassPathChangeUploaderTests.java

@@ -139,8 +139,7 @@ class ClassPathChangeUploaderTests {
 		files.add(new ChangedFile(sourceFolder, file3, Type.DELETE));
 		Set<ChangedFiles> changeSet = new LinkedHashSet<>();
 		changeSet.add(new ChangedFiles(sourceFolder, files));
-		ClassPathChangedEvent event = new ClassPathChangedEvent(this, changeSet, false);
-		return event;
+		return new ClassPathChangedEvent(this, changeSet, false);
 	}
 
 	private File createFile(File sourceFolder, String name) throws IOException {