Show comments with hidden authors

In the past, whenever we hid users, we also hid their comments.
However, we've now implemented an action to hide users without hiding
their comments. In this case, we still want to show the comment, but we
weren't doing so.

app/views/comments/_comment.html.erb

@@ -2,7 +2,7 @@
 <% cache [locale_and_user_status(comment), comment, commentable_cache_key(comment.commentable), comment.author] do %>
   <div id="<%= dom_id(comment) %>" class="comment small-12">
     <div class="comment-body">
-      <% if comment.hidden? || comment.user.hidden? %>
+      <% if comment.hidden? %>
         <% if comment.children.size > 0 %>
           <div class="callout secondary">
             <p><%= t("comments.comment.deleted") %></p>