turn psych migration on for everywhere

closes #CNVS-28848

Change-Id: Ib571832616d0c08431eab95fe6e9a53bb4c016ec
Reviewed-on: https://gerrit.instructure.com/77519
Reviewed-by: Cody Cutrer <cody@instructure.com>
Tested-by: Jenkins
Product-Review: James Williams  <jamesw@instructure.com>
QA-Review: James Williams  <jamesw@instructure.com>

db/migrate/20160210153643_begin_psych_migration.rb

@@ -3,16 +3,6 @@ class BeginPsychMigration < ActiveRecord::Migration
 
   disable_ddl_transaction!
 
-  def self.runnable? # TODO: Remove when we're ready to run this everywhere
-    if ENV['RUN_PSYCH_MIGRATION']
-      true
-    elsif ApplicationController.respond_to?(:test_cluster?)
-      ApplicationController.test_cluster?
-    else
-      true
-    end
-  end
-
   def up
     DataFixup::PsychMigration.run if CANVAS_RAILS4_0 || !Rails.env.test?
   end