ouch: spec: remove unnecessary test

that test only fails anyway

Signed-off-by: Felipe Balbi <balbi@kernel.org>
ouch: gemspec: fix gem build warnings

Signed-off-by: Felipe Balbi <balbi@kernel.org>
ouch: add thor to runtime dependency

We're going to use Thor as an easy way to write
out test application.

Signed-off-by: Felipe Balbi <balbi@kernel.org>