Toaster is shardless

It's not like we broke it into shards. Nothing like that, our toaster
is fully working. Nevertheless it is a sample and has no place
in production code nor its configuration.

Change-Id: Ie14c698c1ea45a5fe201d1b6227eeb4f2d9790a5
Signed-off-by: Robert Varga <robert.varga@pantheon.tech>
(cherry picked from commit 9b5705d5d4b396e4076d2bc46d554644ac3f150b)