Move history cleanup to CLI as we don't want errors crashing the Manager actor

lib/sidekiq/cli.rb

@@ -75,6 +75,8 @@ module Sidekiq
       logger.info "Running in #{RUBY_DESCRIPTION}"
       logger.info Sidekiq::LICENSE
 
+      Sidekiq::Stats::History.cleanup
+
       @manager = Sidekiq::Manager.new(options)
       poller = Sidekiq::Scheduled::Poller.new
       begin

lib/sidekiq/manager.rb

@@ -28,7 +28,6 @@ module Sidekiq
       @fetcher = Fetcher.new(current_actor, options[:queues], !!options[:strict])
       @ready = @count.times.map { Processor.new_link(current_actor) }
       procline(options[:tag] ? "#{options[:tag]} " : '')
-      Sidekiq::Stats::History.cleanup
     end
 
     def stop(options={})