Source format and clean-up

spring-boot-samples/spring-boot-sample-web-static/src/test/java/org/springframework/boot/sample/ui/SampleWebStaticApplicationTests.java

@@ -23,7 +23,7 @@ import static org.junit.Assert.assertTrue;
 
 /**
  * Basic integration tests for demo application.
- *
+ * 
  * @author Dave Syer
  */
 public class SampleWebStaticApplicationTests {
@@ -37,7 +37,7 @@ public class SampleWebStaticApplicationTests {
 						new Callable<ConfigurableApplicationContext>() {
 							@Override
 							public ConfigurableApplicationContext call() throws Exception {
-								return (ConfigurableApplicationContext) SpringApplication
+								return SpringApplication
 										.run(SampleWebStaticApplication.class);
 							}
 						});