removes extra if check

app/views/groups/issues.html.haml

@@ -8,11 +8,10 @@
     = render 'shared/issuable/nav', type: :issues
     - if current_user
       .nav-controls
-        - if current_user
-          = link_to url_for(params.merge(format: :atom, private_token: current_user.private_token)), class: 'btn' do
-            = icon('rss')
-            %span.icon-label
-              Subscribe
+        = link_to url_for(params.merge(format: :atom, private_token: current_user.private_token)), class: 'btn' do
+          = icon('rss')
+          %span.icon-label
+            Subscribe
         = render 'shared/new_project_item_select', path: 'issues/new', label: "New Issue"
 
   = render 'shared/issuable/filter', type: :issues