Remove hard coded leading slash in head_tag.cs for DevSite image_path meta tag.

Change-Id: I994148882b2f4fbe233f02eb8e35c335af0c32f8
diff --git a/tools/droiddoc/templates-sdk-dev/head_tag.cs b/tools/droiddoc/templates-sdk-dev/head_tag.cs
index 64e8e7e..0c5bb78 100644
--- a/tools/droiddoc/templates-sdk-dev/head_tag.cs
+++ b/tools/droiddoc/templates-sdk-dev/head_tag.cs
@@ -148,7 +148,7 @@
   <meta name="page_type" value="article" /><?cs
       /if ?><?cs
       if:page.image ?>
-  <meta name="image_path" value='/<?cs var:page.image ?>' /><?cs
+  <meta name="image_path" value='<?cs var:page.image ?>' /><?cs
       /if ?><?cs
 /if ?><?cs # END if/else devsite ?><?cs
 
@@ -216,4 +216,4 @@
   ga('universal.send', 'pageview'); // Send page view for new tracker.
 </script><?cs /if ?><?cs
 # END if/else !devsite ?>
-</head>
\ No newline at end of file
+</head>