line 9-12:hide 'Your request completed successfully.' in liferay-ce-ga6

portlet.xml

<portlet>
    <portlet-name>demo</portlet-name>
    <display-name>demo</display-name>
    <portlet-class>xyz.fanqi.demo.portlet.DemoPortlet</portlet-class>
    <init-param>
        <name>view-template</name>
        <value>/portlet/demo/view.jsp</value>
    </init-param>
    <init-param>
        <name>add-process-action-success-action</name>
    	<value>false</value>
    </init-param>
    ...
 </portlet>