Avoid needless assertion.

There will be such delivery, as side effect of automatic bang.

master/product/Vifib/tests/testVifibSlapBang.py

@@ -581,12 +581,6 @@ class TestVifibSlapBang(TestVifibSlapWebServiceMixin):
     sequence_list.addSequenceString(sequence_string)
     sequence_list.play(self)
 
-  def stepCheckComputerPartitionNoInstanceUpdateSalePackingList(self,
-      sequence, **kw):
-    self._checkComputerPartitionNoSalePackingList(
-        self.portal.portal_preferences.getPreferredInstanceUpdateResource(),
-        sequence)
-
   def test_computer_bang_not_called_on_destroying_destroyed(self):
     """Check that bang is ignoring destruction in progress and
        destroyed computer partitions"""
@@ -600,10 +594,6 @@ class TestVifibSlapBang(TestVifibSlapWebServiceMixin):
       Tic
       SlapLogout
 
-      LoginDefaultUser
-      CheckComputerPartitionNoInstanceUpdateSalePackingList
-      Logout
-
       SlapLoginCurrentComputer
       SoftwareInstanceDestroyed
       Tic
@@ -620,10 +610,6 @@ class TestVifibSlapBang(TestVifibSlapWebServiceMixin):
       Tic
       SlapLogout
 
-      LoginDefaultUser
-      CheckComputerPartitionNoInstanceUpdateSalePackingList
-      Logout
-
       LoginERP5TypeTestCase
       CheckSiteConsistency
       Logout
@@ -702,10 +688,6 @@ class TestVifibSlapBang(TestVifibSlapWebServiceMixin):
       Tic
       SlapLogout
 
-      LoginDefaultUser
-      CheckComputerPartitionNoInstanceUpdateSalePackingList
-      Logout
-
       LoginERP5TypeTestCase
       CheckSiteConsistency
       Logout