Remove link to survey which doesn't exist on server

Author: tomjaguarpaw

site/haskell-symposium/2013/index.html

@@ -28,7 +28,7 @@ <h2 class="title">Boston, MA, USA<br>
 </div>
 <dl class="news">
     <dt>2013-09-25</dt>
-    <dd><a href="survey">Please fill out the survey about this year's symposium format!</a></dd>
+    <dd><a>Please fill out the survey about this year's symposium format!</a></dd>
     <dt>2013-08-22</dt>
     <dd>Posted tentative schedule. <strong>Our invited speaker is John Launchbury.</strong></dd>
     <dt>2013-07-15</dt>