How to remove unwanted tags using xslt

<para>
    <p>
        This is text
    </p>
    <p/>
    <p/>
    <p>
        This Is text
    </p>
</para>

The Output must be :

<para>
<p>
This is text
</p>
<p>
This Is text
</p>
</para>

I want to remove this "<p/>" tag, how can i do that using xslt?