removed ignore_validation flag from cfy_helper.teardown
removed ignore_validation flag from cfy_helper.teardown

codilime/cloudify-system-tests,cloudify-cosmo/cloudify-system-tests,isaac-s/cloudify-system-tests,codilime/cloudify-system-tests,isaac-s/cloudify-system-tests,isaac-s/cloudify-system-tests,codilime/cloudify-system-tests,cloudify-cosmo/cloudify-system-tests