Bug 1482812 enabled the check for whether origin is valid in both Beta and
Release channels, but it didn't enable the test under the quota folder. That
test verified the check does work while executing storage.persist() if the
origin hasn't been initialized yet. Thus, this patch removes the pref to verify
this check does work for storage.persist() on Beta and the Release channels.
--HG--
extra : rebase_source : c454c57189fbc0557e9c83783adce5efb40304a7
