travis, Remove travis script

[RamLavi]

As travis org will be soon deprecated, we want to move our post-submits to project infra[0].

[0] kubevirt/project-infra#1352

[RamLavi]

/release-note-none

[RamLavi]

/hold

we will use this PR merging to check this PR once merged.

[oshoval]

/lgtm

dont think i have permissions

[kubevirt-bot]

@oshoval: changing LGTM is restricted to collaborators

In response to [this](https://github.com/k8snetworkplumbingwg/ovs-cni/pull/165#issuecomment-864775756): >/lgtm > >dont think i have permissions > Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes/test-infra](https://github.com/kubernetes/test-infra/issues/new?title=Prow%20issue:) repository.

[RamLavi]

/retest checking locally I don't see why the ./cluster/kubectl.sh -n kube-system wait --for=condition=ready -l name=multus pod --timeout=300s failed.

[RamLavi]

/retest

[RamLavi]

/hols cancel project-infra PR merged

[phoracek]

/lgtm /approve

[kubevirt-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: oshoval, phoracek, RamLavi

The full list of commands accepted by this bot can be found here.

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Needs approval from an approver in each of these files: - ~~[OWNERS](https://github.com/k8snetworkplumbingwg/ovs-cni/blob/main/OWNERS)~~ [phoracek] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment

[RamLavi]

/hold cancel