remove not reachable code

lib/que/adapters/active_record_with_lock.rb

@@ -3,7 +3,6 @@
 module Que
   module Adapters
     class ActiveRecordWithLock < Que::Adapters::ActiveRecord
-      class NoLockableJobs < StandardError; end
       FindJobSecondsTotal = Prometheus::Client::Counter.new(
         :que_find_job_seconds_total,
         docstring: "Seconds spent finding a job",
@@ -50,7 +49,7 @@ 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 +60,6 @@ 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

spec/lib/que/adapters/active_record_with_lock_spec.rb

@@ -12,6 +12,9 @@
     Que.adapter.tap do |old_adapter|
       # We need this to avoid errors related to prepared statements
       if old_adapter.class != described_class
+
+        puts "old_adapter #{old_adapter.class}"
+        puts "new adapter #{adapter.class}"
         Que.adapter = adapter
         example.run
         Que.adapter = old_adapter