Non-Veteran Claimants can incorrectly access digital submission

[oddball-lindsay]

Expected: When the claimant type changes from Veteran to non-Veteran, digital submission no longer becomes available. (Digital submission is only for Veteran users).

Actual: Going back and changing claimant types allows non-Veterans to access digital submission features, including this required Veteran email address.

Steps to reproduce:

1. Select that you're a Veteran
2. Select a rep that allows for online submission
3. Enter information as the Veteran
4. Hit back all the way to the "Claimant Type" screen
5. Change selection to non-Veteran
6. Search/select a rep that allows for online submission -- you can see that online submissions are available downstream

[oddball-lindsay]

Looks good, thanks @jvcAdHoc !