Update index.html

The YouTube video mentioned in the code is unlisted or has been removed.

Author: barisyeman

site/index.html

@@ -167,14 +167,6 @@ <h5>Past and Present of Haskell &ndash; Interview with Simon Peyton Jones</h5>
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-                        <div class=" span3 col-xs-6 col-sm-3 col-md-2">
-                           <a href="https://www.youtube.com/watch?v=IzQTfh-Iuds&amp;list=PLF1Z-APd9zK7usPMx3LGMZEHrECUGodd3&amp;index=1" title="Functional Programming in Haskell, by Graham Hutton" class="thumbnail">
-                              <img src="https://i1.ytimg.com/vi/IzQTfh-Iuds/mqdefault.jpg" alt="" class="img-responsive">
-                              <div class="caption">
-                                 <h5>Functional Programming in Haskell, by Graham Hutton</h5>
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-                           </a>
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                            <a href="https://www.youtube.com/watch?v=t1e8gqXLbsU" title="What is a Monad? by Computerphile / Graham Hutton" class="thumbnail">
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