fixes #4743 - setup_test clean except for manifest upload repeat

```
% rake test TEST=test/setup_test.rb
  1) Failure:
setup::subscription setup#test_0001_hammer -v subscription upload --organization-id megacorp --file test/data/megacorp.zip [/home/tomckay/code/hammer-cli-csv/test/setup_test.rb:105]:
--- expected
+++ actual
@@ -1 +1 @@
-"TODO: Bug #4748 - errors on import manifest should complete dynflow task and display information to user"
+""
```