docs: remove preliminary watermark from docs

Change-Id: I452596cdc5b87effdb958ff963d9aa80ebec5d37
diff --git a/tools/droiddoc/templates-sdk/assets/android-developer-core.css b/tools/droiddoc/templates-sdk/assets/android-developer-core.css
index 623ffb9..37acc23 100644
--- a/tools/droiddoc/templates-sdk/assets/android-developer-core.css
+++ b/tools/droiddoc/templates-sdk/assets/android-developer-core.css
@@ -196,8 +196,8 @@
 /* LAYOUT */
 
 #body-content {
-  /* "Preliminary" watermark for preview releases and interim builds.*/
-  background:transparent url(images/preliminary.png) repeat scroll 0 0;
+  /* "Preliminary" watermark for preview releases and interim builds.
+  background:transparent url(images/preliminary.png) repeat scroll 0 0; */
   margin:0;
   position:relative;
   width:100%;