non-ic aws environment, after run regression, found lots of egressIPs were not deleted from nodes

4.14.0-0.ci-2023-06-20-200722 which includes the pr https://github.com/openshift/ovn-kubernetes/pull/1714

Always

1. After run regression cases, found lot's of egressIP were not cleared from node. Then reproduced manually.
2. Label one node as egress node, create on egressIP object
% oc get egressip
NAME         EGRESSIPS     ASSIGNED NODE                               ASSIGNED EGRESSIPS
egressip-1   10.0.72.100   ip-10-0-72-134.us-east-2.compute.internal   10.0.72.100
3. Delete egressIP object
% oc delete egressip --all
egressip.k8s.ovn.org "egressip-1" deleted
4. Checking cloudprivateipconfig
% oc get cloudprivateipconfig                               
NAME          AGE
10.0.48.183   53m
10.0.48.194   82m
10.0.48.54    85m
10.0.49.71    87m
10.0.49.95    60m
10.0.50.68    53m
10.0.50.87    91m
10.0.51.148   46m
10.0.51.174   47m
10.0.51.25    61m
10.0.54.53    72m
10.0.55.250   56m
10.0.56.177   47m
10.0.56.20    50m
10.0.58.199   80m
10.0.58.5     47m
10.0.60.121   48m
10.0.61.16    29m
10.0.61.180   89m
10.0.61.48    54m
10.0.62.64    54m
10.0.72.100   72s. ---The is left one in this manual test, others above are left by automation regression
3.

EgressIPs were not cleared from nodes after deleting egressIP objects

EgressIPs should be cleared from node