remove: 刪除部分多餘的代碼

layout/includes/header/post-info.pug

@@ -1,7 +1,7 @@
 #post-info
   h1.post-title= page.title || _p('no_title')
     if theme.post_edit.enable
-      a.post-edit-link(href=post_edit(page.source) title=_p('post.edit'))
+      a.post-edit-link(href=theme.post_edit.url + page.source title=_p('post.edit') target="_blank")
         i.fa.fa-pen-nib
         
   #post-meta