Removed Implementation-URL entry as that seems to be used for automatic extension downloading:

See http://java.sun.com/j2se/1.3/docs/guide/jar/jar.html#Main%20Attributes

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@477112 13f79535-47bb-0310-9956-ffa450edef68

build.xml

@@ -511,7 +511,6 @@ list of possible build targets.
           <attribute name="Implementation-Title" value="${Name}"/>
           <attribute name="Implementation-Version" value="${version}"/>
           <attribute name="Implementation-Vendor" value="The Apache Software Foundation (http://xmlgraphics.apache.org/fop/)"/>
-          <attribute name="Implementation-URL" value="http://xmlgraphics.apache.org/fop/"/>
         </section>
       </manifest>
       <metainf dir="${basedir}" includes="LICENSE,NOTICE"/>