slapos_accounting: no need to create open order slowly

There should not be any conflict anymore

master/bt5/slapos_accounting/SkinTemplateItem/portal_skins/slapos_accounting/Alarm_requestUpdateInstanceTreeOpenSaleOrder.py

@@ -7,7 +7,6 @@ portal.portal_catalog.searchAndActivate(
   causality_state="diverged",
   activate_kw={'tag': tag, 'priority': 2},
   activity_count=10,
-  packet_size=1, # InstanceTree_trigger_Person_storeOpenSaleOrderJournal
 )
 
 context.activate(after_tag=tag).getId()