Disable stack cleanup

Periodic oscore jobs shouldn't cleanup stacks,
because oscore qa should have time to investigate
test results. Stacks will be cleaned up by separate
job. Also as oscore periodic jobs are running in separate
tenant mcp-oscore-ci this won't affect developers.

Change-Id: I316675cd19bcdecc7ef6d636a7b6a67a755db652
1 file changed