Update Javadoc for MockMvc

Deleted reference to the obsolete configureWarRootDir() method from the
stand-alone spring-test-mvc project.

spring-test-mvc/src/main/java/org/springframework/test/web/servlet/MockMvc.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2013 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -38,7 +38,7 @@ import org.springframework.util.Assert;
  *
  * WebApplicationContext wac = ...;
  *
- * MockMvc mockMvc = webAppContextSetup(wac).configureWarRootDir("src/main/webapp", false).build()
+ * MockMvc mockMvc = webAppContextSetup(wac).build();
  *
  * mockMvc.perform(get("/form"))
  *     .andExpect(status().isOk())