DocServletTest: remove println

Change-Id: Ied87b9e9fd61fa48f02bd0a7086902212d8c9635

javatests/com/google/gitiles/doc/DocServletTest.java

diff --git a/javatests/com/google/gitiles/doc/DocServletTest.java b/javatests/com/google/gitiles/doc/DocServletTest.java
index 2a9c2c5..110f481 100644
--- a/javatests/com/google/gitiles/doc/DocServletTest.java
+++ b/javatests/com/google/gitiles/doc/DocServletTest.java
@@ -158,7 +158,6 @@
     repo.branch("master").commit().add("index.md", markdown).create();
 
     String html = buildHtml("/repo/+/master/index.md");
-    System.out.println(html);
     assertThat(html)
         .contains(
             "<ul><li><p>one</p><div class=\"aside\">remember this</div>"