fixed #433

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@2898 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/resources/lib/hudson/summary.jelly

@@ -5,6 +5,7 @@
 	<%@ attribute name="href" %>
 -->
 <j:jelly xmlns:j="jelly:core" xmlns:st="jelly:stapler" xmlns:d="jelly:define" xmlns:l="/lib/layout" xmlns:t="/lib/hudson" xmlns:f="/lib/form">
+  <j:if test="${attrs.icon}">
     <tr>
       <td>
         <a href="${attrs.href}">
@@ -17,4 +18,5 @@
         </a>
       </td>
     </tr>
+  </j:if>
 </j:jelly>
\ No newline at end of file