Drop MAIL_TEMPLATES table

it’s not used since 695dc16b8 / 335caed65e anymore

db/migrate/20180108144114_drop_mail_templates_table.rb

@@ -0,0 +1,5 @@
+class DropMailTemplatesTable < ActiveRecord::Migration[5.0]
+  def change
+    drop_table :mail_templates
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20180108132507) do
+ActiveRecord::Schema.define(version: 20180108144114) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -323,15 +323,6 @@ ActiveRecord::Schema.define(version: 20180108132507) do
     t.string  "type",         default: "InviteGestionnaire"
   end
 
-  create_table "mail_templates", force: :cascade do |t|
-    t.string   "object"
-    t.text     "body"
-    t.string   "type"
-    t.integer  "procedure_id"
-    t.datetime "created_at"
-    t.datetime "updated_at"
-  end
-
   create_table "module_api_cartos", force: :cascade do |t|
     t.integer "procedure_id"
     t.boolean "use_api_carto",          default: false