slapos_accounting: testSlapOSAccountingRule: factorise Sale Supply creation

master/bt5/slapos_accounting/TestTemplateItem/portal_components/test.erp5.testSlapOSAccountingRule.py

@@ -454,20 +454,8 @@ class TestDefaultPaymentRule(SlapOSTestCaseMixin):
 
 class TestHostingSubscriptionSimulation(SlapOSTestCaseMixin):
   def _prepare(self):
-    software_product, _, _, _, _, self.instance_tree = self.bootstrapAllocableInstanceTree(is_accountable=True)
+    software_product, _, _, _, _, self.instance_tree = self.bootstrapAllocableInstanceTree(is_accountable=True, base_price=9)
     project = software_product.getFollowUpValue()
-    sale_supply = self.portal.sale_supply_module.newContent(
-      portal_type="Sale Supply",
-      destination_project_value=project,
-      price_currency=project.Project_getAccountingCurrency()
-    )
-    sale_supply.newContent(
-      portal_type="Sale Supply Line",
-      base_price=9,
-      resource_value=software_product
-    )
-    sale_supply.validate()
-    self.tic()
 
     trade_condition = project.getSpecialiseValue()
     # This test expect no accounting.