Consolidate admin u2f authenticate with normal u2f authenticate

app/views/admin/sessions/_two_factor_u2f.html.haml

-#js-authenticate-u2f
-%a.btn.btn-block.btn-info#js-login-2fa-device{ href: '#' }= _("Sign in via 2FA code")
-
-%script#js-authenticate-u2f-in-progress{ type: "text/template" }
-  %p= _("Trying to communicate with your device. Plug it in (if you haven't already) and press the button on the device now.")
-
--# haml-lint:disable NoPlainNodes
-%script#js-authenticate-u2f-error{ type: "text/template" }
-  %div
-    %p <%= error_message %> (#{_("error code:")} <%= error_code %>)
-    %a.btn.btn-block.btn-warning#js-u2f-try-again= _("Try again?")
-
-%script#js-authenticate-u2f-authenticated{ type: "text/template" }
-  %div
-    %p= _("We heard back from your U2F device. You have been authenticated.")
-    = form_tag(admin_session_path, method: :post, id: 'js-login-u2f-form') do |f|
-      = hidden_field_tag 'user[device_response]', nil, class: 'form-control', required: true, id: "js-device-response"

app/views/admin/sessions/two_factor.html.haml

@@ -12,4 +12,4 @@
               - if current_user.two_factor_otp_enabled?
                 = render 'admin/sessions/two_factor_otp'
               - if current_user.two_factor_u2f_enabled?
-                = render 'admin/sessions/two_factor_u2f'
+                = render 'u2f/authenticate', render_remember_me: false, target_path: admin_session_path

app/views/devise/sessions/two_factor.html.haml

@@ -14,4 +14,4 @@
               = f.submit "Verify code", class: "btn btn-success"
 
       - if @user.two_factor_u2f_enabled?
-        = render "u2f/authenticate", locals: { params: params, resource: resource, resource_name: resource_name }
+        = render "u2f/authenticate", params: params, resource: resource, resource_name: resource_name, render_remember_me: true, target_path: new_user_session_path

app/views/u2f/_authenticate.html.haml

@@ -12,7 +12,8 @@
 %script#js-authenticate-u2f-authenticated{ type: "text/template" }
   %div
     %p= _("We heard back from your U2F device. You have been authenticated.")
-    = form_tag(new_user_session_path, method: :post, id: 'js-login-u2f-form') do |f|
-      - resource_params = params[resource_name].presence || params
-      = hidden_field_tag 'user[remember_me]', resource_params.fetch(:remember_me, 0)
+    = form_tag(target_path, method: :post, id: 'js-login-u2f-form') do |f|
+      - if render_remember_me
+        - resource_params = params[resource_name].presence || params
+        = hidden_field_tag 'user[remember_me]', resource_params.fetch(:remember_me, 0)
       = hidden_field_tag 'user[device_response]', nil, class: 'form-control', required: true, id: "js-device-response"