slapos_accounting: stop creation Open Sale Order from Instance Tree

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

@@ -2,6 +2,9 @@ from zExceptions import Unauthorized
 if REQUEST is not None:
   raise Unauthorized
 
+if 1:
+  raise NotImplementedError('Stop creating Open Sale Order from Instance Tree')
+
 from DateTime import DateTime
 
 portal = context.getPortalObject()