removes print setup as not needed in reveal 4

Print formatting is supported by adding ?print-pdf query string.

Author: davidovich

layouts/partials/layout/javascript.html

@@ -3,15 +3,6 @@
 <!-- Printing and PDF exports -->
 <!-- use Hugo to create the right path for the print stylesheet, then conditionally include it -->
 {{- $reveal_location := $.Param "reveal_hugo.reveal_cdn" | default "reveal-js" -}}
-<a href="{{ printf "%s/css/print/" $reveal_location | relURL }}" id="print-location" style="display: none;"></a>
-<script type="text/javascript">
-  var printLocationElement = document.getElementById('print-location');
-  var link = document.createElement('link');
-  link.rel = 'stylesheet';
-  link.type = 'text/css';
-  link.href = printLocationElement.href + (window.location.search.match(/print-pdf/gi) ? 'pdf.css' : 'paper.css');
-  document.getElementsByTagName('head')[0].appendChild(link);
-</script>
 
 <!-- load Reveal.js javascripts -->
 <script src="{{ printf "%s/dist/reveal.js" $reveal_location | relURL }}"></script>