undo the butterbar change, because automerger is ruthless

Change-Id: If9953c9c7af1250a26a74691d8aac58808595c85
diff --git a/tools/droiddoc/templates-sdk/assets/css/default.css b/tools/droiddoc/templates-sdk/assets/css/default.css
index dc73c7f..eecab79 100644
--- a/tools/droiddoc/templates-sdk/assets/css/default.css
+++ b/tools/droiddoc/templates-sdk/assets/css/default.css
@@ -4042,7 +4042,7 @@
 #header-wrapper {
   background: #f9f9f9;
   margin: 0 -10px 0 -10px;
-  padding: 51px 10px 0px 10px;
+  padding: 31px 10px 0px 10px;
   position: relative;
 }
 #header-wrapper #nav-x div.wrap {