Bug 1031369 - Show System SIM PIN dialog on upgrade after tutorial

on second thought, `VersionHelper` not being the mock of a gecko API, and being declared as part of the `mockHelper` files to load, it shouldn't be necessary to do this in here, should be done automatically when attaching the test helpers [https://github.com/mozilla-b2g/gaia/pull/21557/files#diff-a39bdb24fb681b98963a498c0ee80e20R21], so I think we should remove it from here.