`ioutil` has been deprecated by golang. All the code in `ioutil` just
forwards functionality to code in either the `io` or `os` packages.
See https://github.com/golang/go/pull/51961 for more info.
Signed-off-by: Jeff Widman <jeff@jeffwidman.com>
Adds an equivalent TestSandboxRemoveWithoutIPLeakage for Windows, in which
we assert that the IPs are not leaked when a Pod's HNS namespace dissapears
and the Pod is deleted afterwards.
Signed-off-by: Claudiu Belu <cbelu@cloudbasesolutions.com>
