remove runc test (#201)

This test was not reliable  because of the necessary setup
needed to run the test.  The level of runc coverage needed
is covered by the k8-cluster and openshift test.  The upstream
test [1] is still available for users who want to run it manually.

[1] https://fedorapeople.org/cgit/caiqian/public_git/runctst.git/

Author: mike-nguyen