Remove Hacktoberfest dialog (#340)

themes/grass/layouts/index.html

@@ -15,39 +15,6 @@ <h1 class="mb-3"><img alt="GRASS GIS" src="{{.Site.BaseURL}}/images/logos/grassl
     </div>
   </header>
 
-  <div class="modal show fade" id="hacktoberfest-modal" tabindex="-1" aria-hidden="true">
-    <div class="modal-dialog">
-      <div class="modal-content">
-        <div class="modal-body">
-          <p>
-      <a href="https://hacktoberfest.com/"><b>Hacktober fest</b></a> is here!!! A full month to contribute to open source software.</p>
-      <p>
-      Ever wanted to share your talent with 
-     GRASS GIS? This is an excellent opportunity. Both coding and non coding contributions are welcome.
-     Please have a look at <a href="https://github.com/OSGeo/grass/issues?q=is%3Aopen+is%3Aissue+label%3AHacktoberfest"><b>GRASS GIS repo</b></a>
-     and <a href="https://github.com/OSGeo/grass-addons/issues?q=is%3Aissue+is%3Aopen+label%3AHacktoberfest"><b> GRASS addons repo</b></a>. 
-    </p>
-        <p>    
-     Still not sure what to do? Please do not hesitate to reach out <a href="https://gitter.im/grassgis/community"> <b>in our chatroom :)</b></a>
-          </p>
-          <p>
-            <i>GRASS GIS Team</i>
-          </p> 
-
-            </div>
-        <div class="modal-footer">
-          <button type="button" class="btn btn-primary" data-dismiss="modal">Close</button>
-        </div>
-      </div>
-    </div>
-  </div>
-<script>
-    $(window).load(function()
-{
-    $('#hacktoberfest-modal').modal('show');
-});
-</script>
-
 
   <section class="section bg-gray">
     <div class="container">