always use sidekiq for user sync

.travis.yml

@@ -1,7 +1,6 @@
 language: ruby
 services:
   - redis
-  - rabbitmq
 rvm:
   - jruby-19mode
 jdk:

lib/travis/services/sync_user_.rb

@@ -10,13 +10,8 @@ def run
       end
 
       def trigger_sync
-        if Travis::Features.user_active?(:sync_via_sidekiq, user) or Travis::Features.enabled_for_all?(:sync_via_sidekiq)
-          logger.info("Synchronizing via Sidekiq for user: #{user.login}")
-          Travis::Sidekiq::SynchronizeUser.perform_async(user.id)
-        else
-          logger.info("Synchronizing via AMQP for user: #{user.login}")
-          publisher.publish({ :user_id => user.id }, :type => 'sync')
-        end
+        logger.info("Synchronizing via Sidekiq for user: #{user.login}")
+        Travis::Sidekiq::SynchronizeUser.perform_async(user.id)
         user.update_column(:is_syncing, true)
         true
       end
@@ -25,10 +20,6 @@ def user
         # TODO check that clients are only passing the id
         @user ||= current_user || User.find(params[:id])
       end
-
-      def publisher
-        Travis::Amqp::Publisher.new('sync.user')
-      end
     end
   end
 end