maintenance: consolidate maintenance tasks in logical/maintenance.rb.

config/schedule.rb

@@ -2,15 +2,11 @@ set :output, "/var/log/whenever.log"
 #env "MAILTO", "webmaster@danbooru.donmai.us"
 
 every 1.hour do
-  runner "UploadErrorChecker.new.check!"
-end
-
-every 1.hour do
-  runner "DelayedJobErrorChecker.new.check!"
+  runner "Maintenance.hourly"
 end
 
 every 1.day do
-  runner "DailyMaintenance.new.run"
+  runner "Maintenance.daily"
 end
 
 every 1.day, :at => "1:00 am" do
@@ -18,10 +14,5 @@ every 1.day, :at => "1:00 am" do
 end
 
 every 1.week, :at => "1:30 am" do
-  runner "WeeklyMaintenance.new.run"
-  runner "TagRelationshipRetirementService.find_and_retire!"
-end
-
-every 1.month, :at => "2:00 am" do
-  runner "MonthlyMaintenance.new.run"
+  runner "Maintenance.weekly"
 end