6744408: Extra ouput is appearing in stderr

Reviewed-by: bpatel

src/share/classes/com/sun/tools/javadoc/DocletInvoker.java

@@ -82,7 +82,6 @@ public class DocletInvoker {
         cpString = appendPath(System.getProperty("java.class.path"), cpString);
         cpString = appendPath(docletPath, cpString);
         URL[] urls = pathToURLs(cpString);
-        System.err.println("DocletInvoker urls=" + urls);
         appClassLoader = new URLClassLoader(urls);
 
         // attempt to find doclet