Revert "FIX: Heartbeat check per sidekiq process (#7873)"

This reverts commit 340855da55.

app/jobs/regular/run_heartbeat.rb

@@ -2,8 +2,19 @@
 
 module Jobs
   class RunHeartbeat < Jobs::Base
+
+    sidekiq_options queue: 'critical'
+
+    def self.heartbeat_key
+      'heartbeat_last_run'
+    end
+
     def execute(args)
-      Demon::Sidekiq.trigger_heartbeat(args[:queue_name])
+      $redis.set(self.class.heartbeat_key, Time.new.to_i.to_s)
+    end
+
+    def self.last_heartbeat
+      $redis.get(heartbeat_key).to_i
     end
   end
 end

app/jobs/scheduled/heartbeat.rb

@@ -7,9 +7,7 @@ module Jobs
     every 3.minute
 
     def execute(args)
-      Demon::Sidekiq::QUEUE_IDS.each do |identifier|
-        Jobs.enqueue(:run_heartbeat, queue_name: identifier, queue: identifier)
-      end
+      Jobs.enqueue(:run_heartbeat, {})
     end
   end
 end