DO NOT MERGE - Remove extra printf

Change-Id: I8a2e4fac78010fe531b080d3555557e557c038b9
diff --git a/tools/droiddoc/src/DroidDoc.java b/tools/droiddoc/src/DroidDoc.java
index 79d593c..dfdbda6 100644
--- a/tools/droiddoc/src/DroidDoc.java
+++ b/tools/droiddoc/src/DroidDoc.java
@@ -355,7 +355,6 @@
                         }
                     }
                     knownTags.add(words[0]);
-                    System.out.println("Known tag: " + words[0]);
                 }
                 if (fail) {
                     return false;