remove not reachable code

lib/que/adapters/active_record_with_lock.rb

@@ -50,7 +50,7 @@ def execute(command, params = [])
       def lock_job_with_lock_database(queue, cursor)
         loop do
           observe(duration_metric: FindJobSecondsTotal, labels: { queue: queue }) do
-            locked_job = Que.transaction do
+            Que.transaction do
               job_to_lock = Que.execute(:find_job_to_lock, [queue, cursor])
 
               return job_to_lock if job_to_lock.empty?
@@ -61,7 +61,6 @@ def lock_job_with_lock_database(queue, cursor)
               observe(count_metric: FindJobHitTotal, labels: { queue: queue, job_hit: job_locked })
               return job_to_lock if job_locked
             end
-            return locked_job if locked_job
           end
         end
       end