erp5_interface_post: removes test for a feature which has been dropped

bt5/erp5_interface_post/TestTemplateItem/portal_components/test.erp5.testInterfacePost.py

@@ -232,30 +232,6 @@ class TestInterfacePost(ERP5TypeLiveTestCase):
     sequence_list.addSequenceString(sequence_string)
     sequence_list.play(self)
 
-  def test_onlyOneExportablePostIsExported(self):
-    """
-    interface_post_workflow defines "exportable" and "exported" states, as for some portal types
-    we may stack all new objects, and regularly export them all at once. Ie, for letters, we can
-    gather them all in a unique PDF and send it to a printer.
-    As a user may send an Event, then rework on it, and re-send it, it will create 2 Posts for
-    the same Event. In that case, we want only one of these posts to be exported, and the others
-    become "unexportable".
-    """
-    sequence_list = SequenceList()
-    # With 3 Letter Posts, we can trigger a race condition where 2 letters
-    # disallow export of each other, thus nothing is exported.
-    sequence_string = """
-      stepCreateLetterPost
-      stepCreateLetterPost
-      stepCreateLetterPost
-      stepTic
-      stepAllowExportOfAllLetterPost
-      stepTic
-      stepCheckOnlyOneLetterPostIsExported
-    """
-    sequence_list.addSequenceString(sequence_string)
-    sequence_list.play(self)
-
   def test_deliveredMailMessagePreviewDisplaysLatestInternetMessagePostData(self):
     """
     """