webadmin, userportal: Revert configurable unsupported locales.

Revert "engine,userportal,webadmin: configurable unsupported locales"

This reverts commit 704879259b8ca36433d56849ea765db3fd8c5ecf.

Change-Id: I2db610b7eec74116a88a2549071bb28d724df45d
Signed-off-by: Alexander Wels <awels@redhat.com>
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1096525