Remove EE Api guard

ee/lib/ee/api/api_guard.rb

-# frozen_string_literal: true
-
-module EE
-  module API
-    module APIGuard
-      module HelperMethods
-        extend ::Gitlab::Utils::Override
-
-        override :find_user_from_sources
-        def find_user_from_sources
-          deploy_token_from_request ||
-            find_user_from_bearer_token ||
-            find_user_from_job_token ||
-            find_user_from_warden
-        end
-      end
-    end
-  end
-end

lib/api/api_guard.rb

@@ -43,7 +43,6 @@ module API
 
     # Helper Methods for Grape Endpoint
     module HelperMethods
-      prepend_if_ee('EE::API::APIGuard::HelperMethods') # rubocop: disable Cop/InjectEnterpriseEditionModule
       include Gitlab::Auth::AuthFinders
 
       def access_token
@@ -66,7 +65,6 @@ module API
 
       def find_user_from_sources
         deploy_token_from_request ||
-          find_user_from_access_token ||
           find_user_from_bearer_token ||
           find_user_from_job_token ||
           find_user_from_warden