CherryPicked: [cnv-4.22] net, localnet: De-quarantine IPv6 visibility test (#5144)

Cherry-pick from `main` branch, original PR:
#5094, PR
owner: nirdothan

Signed-off-by: Nir Dothan <ndothan@redhat.com>
Co-authored-by: Nir Dothan <ndothan@redhat.com>

Author: cnv-tests-github-webhook-dollierp[bot]

tests/network/localnet/test_default_bridge.py

@@ -11,7 +11,6 @@
     LOCALNET_BR_EX_INTERFACE,
     LOCALNET_BR_EX_INTERFACE_NO_VLAN,
 )
-from utilities.constants import QUARANTINED
 from utilities.virt import migrate_vm_and_verify
 
 
@@ -61,10 +60,6 @@ def test_connectivity_post_migration_between_localnet_vms(
 @pytest.mark.s390x
 @pytest.mark.usefixtures("nncp_localnet")
 @pytest.mark.polarion("CNV-12363")
-@pytest.mark.xfail(
-    reason=f"{QUARANTINED}: The requested IPv6 address is assigned but not visible in VMI: CNV-80582",
-    run=False,
-)
 def test_vmi_reports_ip_on_secondary_interface_without_vlan(
     localnet_running_vms,
 ):