
Using AtomicBoolean is racy. It's actually safer to use static
initialization.
The problem being addressed in change I92a6c98d8 was fixed by making
the usage of OutgoingEmailValidator consistent in CreateEmail and
CreateAccount.
This partially reverts commit 3aaf831893
.
Change-Id: Ia10c74705a3e467c9f31896ac72ec231acb37635