Revert "Issue #2411595: Make the footer sticky when the page is smaller than the"

t revert b815f5eb
This reverts commit 64237041.

js/bluecheese.js

 (function ($) {
   $(document).ready(function() {
     $("table").not("#forum table").not(".page-user-track table").not("#project-usage-project-releases").responsivetable();
-
-    var bodyHeight = $('body').height();
-    var windowHeight = $(window).height();
-    if (windowHeight > bodyHeight) {
-      $('#footer').css({
-        bottom: 0,
-        position: 'absolute',
-      });
-    }
   });
 })(jQuery);