Show "comment removed" warning to non-admins

tildes/scss/modules/_comment.scss

@@ -88,6 +88,12 @@
   overflow: auto;
 }
 
+.comment-removed-warning {
+  color: $warning-color;
+  font-weight: bold;
+  font-size: 0.6rem;
+}
+
 .comment-votes {
   font-size: 0.6rem;
   font-weight: bold;

tildes/tildes/templates/macros/comments.jinja2

@@ -99,8 +99,8 @@
         data-js-external-links-new-tabs
         {% endif %}
       >
-        {% if comment.is_removed and 'admin' in request.effective_principals %}
-          <p class="text-warning">Comment removed</p>
+        {% if comment.is_removed %}
+          <p class="comment-removed-warning">This comment has been removed and is not visible to other users</p>
         {% endif %}
 
         {{ comment.rendered_html|safe }}