pidgin/nest

Remove extra exclamation points from plugin table.

2020-04-17, Elliott Sales de Andrade
fad7d2231550
Remove extra exclamation points from plugin table.

These were necessary on Trac to stop it from auto-linking, but we don't
need them on nest.
<link rel="icon" type="image/png" href="/images/pidgin-circle-16.png" sizes="16x16">
<link rel="icon" type="image/png" href="/images/pidgin-circle-32.png" sizes="32x32">
<link rel="icon" type="image/png" href="/images/pidgin-circle-96.png" sizes="96x96">