MetalLB: Remove MetalLB deployment scripts

[sabinaaledort]

The MetalLB deployment scripts for OCP CI are now part of the openshift/metallb repo:
https://github.com/openshift/metallb/tree/main/openshift-ci

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[sabinaaledort]

/retest

[sabinaaledort]

/retest

[sabinaaledort]

/retest

[sabinaaledort]

/retest

[sabinaaledort]

/retest

[sabinaaledort]

/retest

[sabinaaledort]

/retest

[sabinaaledort]

/retest

[openshift-ci]

@sabinaaledort: PR needs rebase.

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[openshift-ci]

@sabinaaledort: 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
ci/prow/e2e-metal-ipi-serial-ovn-ipv6	c6ac439	link	true	/test e2e-metal-ipi-serial-ovn-ipv6
ci/prow/e2e-metal-ipi-proxy-ipv6	c6ac439	link	true	/test e2e-metal-ipi-proxy-ipv6
ci/prow/e2e-metal-ipi-proxy-ipv4	c6ac439	link	true	/test e2e-metal-ipi-proxy-ipv4
ci/prow/e2e-metal-ipi-ovn-ipv6	c6ac439	link	true	/test e2e-metal-ipi-ovn-ipv6
ci/prow/e2e-agent-compact	c6ac439	link	true	/test e2e-agent-compact
ci/prow/e2e-metal-ipi	c6ac439	link	true	/test e2e-metal-ipi
ci/prow/e2e-metal-ipi-serial-ipv4	c6ac439	link	true	/test e2e-metal-ipi-serial-ipv4
ci/prow/e2e-metal-ipi-bm	c6ac439	link	true	/test e2e-metal-ipi-bm

Full PR test history. Your PR dashboard.

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