diff --git a/db/migrate/20150626121711_defaults_calendar_subscriptions_ticket.rb b/db/migrate/20150626121711_defaults_calendar_subscriptions_ticket.rb
deleted file mode 100644
index b502fcbf7..000000000
--- a/db/migrate/20150626121711_defaults_calendar_subscriptions_ticket.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-class DefaultsCalendarSubscriptionsTickets < ActiveRecord::Migration
-  def up
-    Setting.create_if_not_exists(
-      title: 'Default calendar Tickets subscriptions',
-      name: 'defaults_calendar_subscriptions_tickets',
-      area: 'Defaults::CalendarSubscriptions',
-      description: 'Defines the default calendar Tickets subscription settings.',
-      options: {},
-      state: {
-        escalation: {
-          own: true,
-          not_assigned: false,
-        },
-        new_open: {
-          own: true,
-          not_assigned: false,
-        },
-        pending: {
-          own: true,
-          not_assigned: false,
-        }
-      },
-      frontend: true
-    )
-  end
-
-  def down
-  end
-end