Revert "Autodestroy CI VMs after two hours"

[radoslawc]

Reverts #263

Seems like preemptive VM provisioning might have negative impact on e2e tests stability and performance

https://cloud.google.com/compute/docs/instances/create-use-preemptible

Preemptible VMs are available at up to a 60-91% discount compared to the price of standard VMs. However, Compute Engine might stop (preempt) these VMs if it needs to reclaim those resources for other tasks. Preemptible VMs always stop after 24 hours. Preemptible VMs are recommended only for fault-tolerant applications that can withstand VM preemption. Make sure your application can handle preemptions before you decide to create a preemptible VM. To understand the risks and value of preemptible VMs, read the preemptible VM instances documentation.

Caution: Preemptible VMs are not covered by any Service Level Agreement and are excluded from the Compute Engine SLA. For more information, see limitations of preemptible VM instances

[nephio-prow]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[electrocucaracha]

@radoslawc reverting this change will require that someone constantly monitors some leftovers in the CI accessing to the GCP project.

[liamfallon]

/test e2e-free5gc-ubuntu-focal

[liamfallon]

/test e2e-oai-ubuntu-jammy
/test e2e-oai-fedora-34

[radoslawc]

/test e2e-oai-ubuntu-jammy

[liamfallon]

/test e2e-oai-ubuntu-jammy

[nephio-prow]

@radoslawc: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
e2e-free5gc-fedora-34	8d1ef34	link	false	/test e2e-free5gc-fedora-34
e2e-free5gc-ubuntu-focal	8d1ef34	link	true	/test e2e-free5gc-ubuntu-focal
e2e-oai-fedora-34	8d1ef34	link	false	/test e2e-oai-fedora-34
e2e-oai-ubuntu-jammy	8d1ef34	link	true	/test e2e-oai-ubuntu-jammy

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[radoslawc]

ported to 282