Remove typing in some fields that are causing the test to fail

This will allow test_add_new_contact to pass, in spite of https://bugzilla.mozilla.org/show_bug.cgi?id=862053.

Normally I would xfail the test and wait for the bug to be fixed, but my understanding is that we want to maximize coverage at the moment, so this seemed like a feasible alternative. Also, we are not actually verifying that the values entered into these fields are correct in the resulting contact, so we aren't losing much coverage by removing them temporarily.

If it is deemed inappropriate to do this I totally understand, and this pull request can be closed and replaced with one that xfails the test. I just figured I might as well deliver something that works now in case you do want to merge it.