Cancel cancelling move instead of delete in test scenario

Since efdb98eb55e5 cancel move is posted of the cancelled move is already
posted. So the cancelling move can no more be deleted, instead it must be
cancelled without reversal to have the same effect.

modules/analytic_account/tests/scenario_analytic_account.rst

@@ -117,8 +117,14 @@ Cancel reversal move::
     >>> reconciliations = {
     ...     l.reconciliation for l in cancel_move.lines if l.reconciliation}
     >>> Reconciliation.delete(list(reconciliations))
-    >>> cancel_move.reload()
-    >>> cancel_move.delete()
+    >>> cancel_move = Wizard('account.move.cancel', [cancel_move])
+    >>> cancel_move.form.reversal = False
+    >>> cancel_move.execute('cancel')
+    >>> analytic_account.reload()
+    >>> analytic_account.credit
+    Decimal('42.00')
+    >>> analytic_account.debit
+    Decimal('0.00')
 
 Cancel move::