Move common views to partial

app/views/devise/shared/_openid.html.haml

@@ -1,7 +1,13 @@
-.btn-group.btn-group-lg
-  - omniauth_configured.each do |provider|
-    = link_to user_omniauth_authorize_path(provider),
-                                      class: "btn btn-success btn-lg",
-                                      id: "omniauth-#{provider}",
-                                      title: "Your #{provider} login" do
-      %i{:class => "fa fa-#{provider}"}
+- unless omniauth_configured.empty?
+  .row
+    .col-md-4
+      %hr
+    .col-md-4
+      %h4.text-center
+        or sign in using
+    .col-md-4
+      %hr
+  .row
+    .col-md-12
+      #openidlinks
+        = render partial: 'devise/shared/openid_links'