Remove conformance tag for internet connectivity

[dims]

What this PR does / why we need it:

ICMP ping is not available in many environments, so we should avoid
using a e2e test based the premise as a conformance test.

Which issue this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged): fixes #

Special notes for your reviewer:
Part of Fix for #52098, Please see #51287 for more discussion

Release note:

NONE

[dims]

cc @bgrant0607 @liggitt

[bgrant0607]

Thanks.

This is necessary until we find a better solution.

/lgtm
/approve

[k8s-github-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: bgrant0607, dims

Associated issue: 52098

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• test/e2e/network/OWNERS [bgrant0607]

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[k8s-github-robot]

/test all [submit-queue is verifying that this PR is safe to merge]

[k8s-github-robot]

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions here.

[pires]

Actually, I think some people may want to run air-gapped Kubernetes clusters that run without any access to the Internet so it makes sense to me to permanently remove this from conformance tests.

[kevin-wangzefeng]

I think we also need to cherry pick this to 1.7.

[mjura]

@dims, @bgrant0607: can we backport this patch to 1.7 branch, please? we hit also this same issue

[dims]

@mjura @kevin-wangzefeng @bgrant0607 - Done!