remove auto create theme

plugin.rb

@@ -1,6 +1,6 @@
 # name: discourse-donations
 # about: Integrating Discourse with Stripe for donations
-# version: 1.10.2
+# version: 1.11.0
 # url: https://github.com/choiceaustralia/discourse-donations
 # authors: Rimian Perkins
 
@@ -12,12 +12,6 @@ enabled_site_setting :discourse_donations_enabled
 
 after_initialize do
   load File.expand_path('../app/jobs/jobs.rb', __FILE__)
-
-  # Must be placed on every page for fraud protection.
-  header_script = '<script src="https://js.stripe.com/v3/"></script>'
-  discourse_donations_theme = Theme.find_or_create_by(name: 'Discourse Donations Header', hidden: false, user_id: -1)
-  discourse_donations_theme.set_field(target: 'common', name: 'head_tag', value: header_script)
-  discourse_donations_theme.save
 end
 
 Discourse::Application.routes.prepend do