delete: Add support for CRI-O
delete: Add support for CRI-O

Relying on latest changes from virtcontainers/pkg/oci, the runtime
"delete" command can now be used from both Docker or CRI-O.

Signed-off-by: Sebastien Boeuf <90b401417360b1924ef3f520ddee932686110f85@intel.com>

devimc/runtime,chavafg/runtime,gorozco1/runtime,clearcontainers/runtime,clearcontainers/runtime,devimc/runtime,gorozco1/runtime,chavafg/runtime