Don't set 'container' env in Molecule containers

Molecule role tests that use pre build images had
superfluous 'container' env variable declaration.
It's not needed as this env is already set in
Dockerfiles, for both: pre-built and custom built
images.

Change-Id: Iee9cc38919da894ee6cc6a2a5f1acc60d76865de
Issue-ID: OOM-1841
Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>
5 files changed