[Plugin: Add Widgets to Page] Remove widget title (for Links widget)

I am using the Add Widgets to Page plugin to post my Links widget to a page. But the Links widget title, which is not editable, is posted as well. I don’t need that since I am already using Links as the page title.

I tried altering the css using the following:
.widget_links h2
{display:none;}

But the title is still there.