Remove duplication in comments votes component

We're also simplifying the code a bit by removing the
`participation-allowed` HTML class, which wasn't used in any other votes
component.

app/assets/javascripts/votes.js

@@ -5,11 +5,9 @@
       $(document).on({
         "mouseenter focus": function() {
           $("div.participation-not-allowed", this).show();
-          $("div.participation-allowed", this).hide();
         },
         mouseleave: function() {
           $("div.participation-not-allowed", this).hide();
-          $("div.participation-allowed", this).show();
         }
       }, votes);
     },

app/components/comments/votes_component.html.erb

@@ -1,5 +1,4 @@
 <div class="votes">
-  <% if current_user %>
   <%= t("comments.comment.votes", count: comment.total_votes) %>
   &nbsp;|&nbsp;
 
@@ -34,44 +33,8 @@
     <% end %>
     <%= comment.total_dislikes %>
   </span>
-  <% else %>
-    <div class="participation-allowed">
-      <%= t("comments.comment.votes", count: comment.total_votes) %>
-      &nbsp;|&nbsp;
-
-      <span class="in_favor">
-        <% if can?(:vote, comment) %>
-          <%= link_to vote_comment_path(comment, value: "yes"),
-              method: "post", remote: true, title: t("votes.agree") do %>
-              <span class="icon-like">
-                <span class="show-for-sr"><%= t("votes.agree") %></span>
-              </span>
-          <% end %>
-        <% else %>
-          <span class="icon-like">
-            <span class="show-for-sr"><%= t("votes.agree") %></span>
-          </span>
-        <% end %>
-        <%= comment.total_likes %>
-      </span>
-
-      <span class="against">
-        <% if can?(:vote, comment) %>
-          <%= link_to vote_comment_path(comment, value: "no"),
-              method: "post", remote: true, title: t("votes.disagree") do %>
-              <span class="icon-unlike">
-                <span class="show-for-sr"><%= t("votes.disagree") %></span>
-              </span>
-          <% end %>
-        <% else %>
-          <span class="icon-unlike">
-            <span class="show-for-sr"><%= t("votes.disagree") %></span>
-          </span>
-        <% end %>
-        <%= comment.total_dislikes %>
-      </span>
-    </div>
 
+  <% unless current_user %>
     <div tabindex="0">
       <div class="participation-not-allowed" style="display:none" aria-hidden="false">
         <%= sanitize(t("votes.comment_unauthenticated", signin: link_to_signin, signup: link_to_signup)) %>

spec/support/common_actions/votes.rb

@@ -8,8 +8,6 @@ module Votes
     within(".participation-not-allowed") do
       expect(page).to have_content "You must sign in or sign up to vote"
     end
-
-    expect(page).not_to have_selector(".participation-allowed")
   end
 
   def expect_message_to_many_anonymous_votes