Remove extraneous class

examples/prism-python.html

@@ -58,7 +58,7 @@ <h2>Known failures</h2>
 </p>
 
 <h3>Triple-quoted strings with what look like strings inside</h3>
-<pre class="language-python"><code>def antique(string):
+<pre><code>def antique(string):
     """Replace anachronistic Latin "j" with "i"."""
     return string.replace("j", "i").replace("J", "I")
     </code></pre>