Revert "Remove unused methods from RegisterNewEmailSender"

This reverts commit 5f0c2390130b4b7c27293602c99254c14d1c3a70.
These methods are invoked by the RegisterNewEmail.vm template
to create the verification email.

Change-Id: I1b29b2e2d0516fbbd911363635439ba2c429a433
1 file changed