rm old migrations

db/migrate/20191025031631_create_customers.rb

@@ -1,13 +0,0 @@
-# frozen_string_literal: true
-
-class CreateCustomers < ActiveRecord::Migration[5.2]
-  def change
-    create_table :discourse_patrons_customers do |t|
-      t.string :customer_id, null: false
-      t.references :user, foreign_key: true
-      t.timestamps
-    end
-
-    add_index :discourse_patrons_customers, :customer_id, unique: true
-  end
-end

db/migrate/20191127233735_add_product_to_customer.rb

@@ -1,7 +0,0 @@
-# frozen_string_literal: true
-
-class AddProductToCustomer < ActiveRecord::Migration[6.0]
-  def change
-    add_column :discourse_patrons_customers, :product_id, :string
-  end
-end

db/migrate/20191128044206_remove_customer_index.rb

@@ -1,7 +0,0 @@
-# frozen_string_literal: true
-
-class RemoveCustomerIndex < ActiveRecord::Migration[6.0]
-  def change
-    remove_index :discourse_patrons_customers, :customer_id
-  end
-end