Change pre code css in markdown

templates/common-content.html

@@ -21,34 +21,6 @@
             info_float.width(container.width());
           }
         }
-
-        // TODO: remove this
-        var copyButton;
-        $('pre code').each(function () {
-          $(this).parent().before($('<div>', {'class': 'copy-clipboard'})
-              .append(copyButton = $('<span>', {
-              'class': 'btn-clipboard',
-              'data-clipboard-text': $(this).text(),
-              'title': 'Click to copy'
-            }).text('Copy')));
-
-          $(copyButton.get(0)).mouseleave(function () {
-            $(this).attr('class', 'btn-clipboard');
-            $(this).removeAttr('aria-label');
-          });
-
-          var curClipboard = new Clipboard(copyButton.get(0));
-
-          curClipboard.on('success', function (e) {
-            e.clearSelection();
-            showTooltip(e.trigger, 'Copied!');
-          });
-
-          curClipboard.on('error', function (e) {
-            showTooltip(e.trigger, fallbackMessage(e.action));
-          });
-
-        });
       });
     </script>
   {% endcompress %}