fix(emails): remove /v1/ api prefix (#1605); r=rfk
fix(emails): remove /v1/ api prefix (#1605); r=rfk

Fixes #1059
mozilla/fxa-auth-server,mozilla/fxa-auth-server,eoger/fxa-auth-server,eoger/fxa-auth-server,eoger/fxa-auth-server,mozilla/fxa-auth-server,eoger/fxa-auth-server,mozilla/fxa-auth-server