removes unused combined stats

app/views/admin/stats/show.html.erb

@@ -79,11 +79,6 @@
         </div>
       </div>
 
-      <div class="small-12">
-        <h2><%= t "admin.stats.show.combined_title" %></h2>
-        <%= events_chart_tag @event_types.keys, id: 'combined' %>
-      </div>
-
       <div class="small-12">
         <h2><%= t "admin.stats.show.visits_title" %></h2>
         <%= visits_chart_tag id: "visits" %>

config/locales/admin.en.yml

@@ -152,7 +152,6 @@ en:
         geozone: Scope
     stats:
       show:
-        combined_title: Combined
         stats_title: Stats
         summary:
           comment_votes: Comment votes

config/locales/admin.es.yml

@@ -152,7 +152,6 @@ es:
         geozone: "Ámbito"
     stats:
       show:
-        combined_title: Combinado
         stats_title: Estadísticas
         summary:
           comment_votes: Votos en comentarios