Simplify Menu code.

src/Menu/Menu.coffee

@@ -8,29 +8,21 @@ Menu =
       cb:   @node
 
   node: ->
-    button = Menu.makeButton @
     if @isClone
-      $.replace $('.menu-button', @nodes.info), button
-      return
-    $.add @nodes.info, [$.tn('\u00A0'), button]
+      button = $ '.menu-button', @nodes.info
+    else
+      button = Menu.makeButton @
+      $.add @nodes.info, [$.tn('\u00A0'), button]
+    $.on button, 'click', Menu.toggle
 
   makeButton: do ->
     a = null
-    (post) ->
+    ->
       a or= $.el 'a',
         className: 'menu-button'
         innerHTML: '[<i></i>]'
         href:      'javascript:;'
-      clone = a.cloneNode true
-      clone.setAttribute 'data-postid', post.fullID
-      clone.setAttribute 'data-clone', true if post.isClone
-      $.on clone, 'click', Menu.toggle
-      clone
+      a.cloneNode true
 
   toggle: (e) ->
-    post =
-      if @dataset.clone
-        Get.postFromNode @
-      else
-        g.posts[@dataset.postid]
-    Menu.menu.toggle e, @, post
+    Menu.menu.toggle e, @, Get.postFromNode @