Man up and deal with CSRF in integration test

Fixes gh-979

spring-boot-samples/spring-boot-sample-web-secure/src/main/java/sample/ui/secure/SampleWebSecureApplication.java

@@ -73,10 +73,6 @@ public class SampleWebSecureApplication extends WebMvcConfigurerAdapter {
 
 		@Override
 		protected void configure(HttpSecurity http) throws Exception {
-			if (!security.isEnableCsrf()) {
-				// For testing
-				http.csrf().disable();
-			}
 			http.authorizeRequests().anyRequest().fullyAuthenticated().and().formLogin()
 					.loginPage("/login").failureUrl("/login?error").permitAll();
 		}

spring-boot-samples/spring-boot-sample-web-secure/src/main/resources/templates/login.html

@@ -27,7 +27,7 @@
 				</fieldset>
 				<input type="submit" id="login" value="Login"
 					class="btn btn-primary" /> <input type="hidden"
-					th:name="${_csrf.parameterName}" th:value="${_csrf.token}" th:if="${_csrf}"/>
+					th:name="${_csrf.parameterName}" th:value="${_csrf.token}"/>
 			</form>
 		</div>
 	</div>