Remove unused javascript

The functionality provided by main.js is not used in the new/modified theme.
Remove it from the theme.

Signed-off-by: Martyn Welch <martyn.welch@collabora.com>

themes/apertis/layouts/partials/footer.html

@@ -71,7 +71,6 @@
 <script src="https://cdnjs.cloudflare.com/ajax/libs/mark.js/8.11.1/jquery.mark.min.js"></script>
 <script src="{{ "js/search.js" | absURL }}"></script>
 <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
-<script src="{{ "js/main.js" | absURL }}"></script>
 <script> renderMathInElement(document.body); </script>
 <!-- Load PhotoSwipe js if the load-photoswipe shortcode has been used -->
 {{ if ($.Scratch.Get "photoswipeloaded") }}

themes/apertis/static/js/main.js

-// Dean Attali / Beautiful Jekyll 2016
-
-var main = {
-
-  bigImgEl : null,
-  numImgs : null,
-
-  init : function() {
-    // Shorten the navbar after scrolling a little bit down
-    $(window).scroll(function() {
-        if ($(".navbar").offset().top > 50) {
-            $(".navbar").addClass("top-nav-short");
-        } else {
-            $(".navbar").removeClass("top-nav-short");
-        }
-    });
-    
-    // On mobile, hide the avatar when expanding the navbar menu
-    $('#main-navbar').on('show.bs.collapse', function () {
-      $(".navbar").addClass("top-nav-expanded");
-    });
-    $('#main-navbar').on('hidden.bs.collapse', function () {
-      $(".navbar").removeClass("top-nav-expanded");
-    });
-  
-    // On mobile, when clicking on a multi-level navbar menu, show the child links
-    $('#main-navbar').on("click", ".navlinks-parent", function(e) {
-      var target = e.target;
-      $.each($(".navlinks-parent"), function(key, value) {
-        if (value == target) {
-          $(value).parent().toggleClass("show-children");
-        } else {
-          $(value).parent().removeClass("show-children");
-        }
-      });
-    });
-    
-    // Ensure nested navbar menus are not longer than the menu header
-    var menus = $(".navlinks-container");
-    if (menus.length > 0) {
-      var navbar = $("#main-navbar ul");
-      var fakeMenuHtml = "<li class='fake-menu' style='display:none;'><a></a></li>";
-      navbar.append(fakeMenuHtml);
-      var fakeMenu = $(".fake-menu");
-
-      $.each(menus, function(i) {
-        var parent = $(menus[i]).find(".navlinks-parent");
-        var children = $(menus[i]).find(".navlinks-children a");
-        var words = [];
-        $.each(children, function(idx, el) { words = words.concat($(el).text().trim().split(/\s+/)); });
-        var maxwidth = 0;
-        $.each(words, function(id, word) {
-          fakeMenu.html("<a>" + word + "</a>");
-          var width =  fakeMenu.width();
-          if (width > maxwidth) {
-            maxwidth = width;
-          }
-        });
-        $(menus[i]).css('min-width', maxwidth + 'px')
-      });
-
-      fakeMenu.remove();
-    }      
-
-    // show the big header image  
-    main.initImgs();
-  },
-  
-  initImgs : function() {
-    // If the page was large images to randomly select from, choose an image
-    if ($("#header-big-imgs").length > 0) {
-      main.bigImgEl = $("#header-big-imgs");
-      main.numImgs = main.bigImgEl.attr("data-num-img");
-
-          // 2fc73a3a967e97599c9763d05e564189
-    // set an initial image
-    var imgInfo = main.getImgInfo();
-    var src = imgInfo.src;
-    var desc = imgInfo.desc;
-      main.setImg(src, desc);
-    
-    // For better UX, prefetch the next image so that it will already be loaded when we want to show it
-      var getNextImg = function() {
-      var imgInfo = main.getImgInfo();
-      var src = imgInfo.src;
-      var desc = imgInfo.desc;      
-      
-    var prefetchImg = new Image();
-      prefetchImg.src = src;
-    // if I want to do something once the image is ready: `prefetchImg.onload = function(){}`
-    
-      setTimeout(function(){
-                  var img = $("<div></div>").addClass("big-img-transition").css("background-image", 'url(' + src + ')');
-        $(".intro-header.big-img").prepend(img);
-        setTimeout(function(){ img.css("opacity", "1"); }, 50);
-      
-      // after the animation of fading in the new image is done, prefetch the next one
-        //img.one("transitioned webkitTransitionEnd oTransitionEnd MSTransitionEnd", function(){
-      setTimeout(function() {
-        main.setImg(src, desc);
-      img.remove();
-        getNextImg();
-      }, 1000); 
-        //});   
-      }, 6000);
-      };
-    
-    // If there are multiple images, cycle through them
-    if (main.numImgs > 1) {
-        getNextImg();
-    }
-    }
-  },
-  
-  getImgInfo : function() {
-    var randNum = Math.floor((Math.random() * main.numImgs) + 1);
-    var src = main.bigImgEl.attr("data-img-src-" + randNum);
-  var desc = main.bigImgEl.attr("data-img-desc-" + randNum);
-  
-  return {
-    src : src,
-    desc : desc
-  }
-  },
-  
-  setImg : function(src, desc) {
-  $(".intro-header.big-img").css("background-image", 'url(' + src + ')');
-  if (typeof desc !== typeof undefined && desc !== false) {
-    $(".img-desc").text(desc).show();
-  } else {
-    $(".img-desc").hide();  
-  }
-  }
-};
-
-// 2fc73a3a967e97599c9763d05e564189
-
-document.addEventListener('DOMContentLoaded', main.init);
\ No newline at end of file