Automated backport of #2766: Delete Calico IPPools when Submariner uninstalled #4299

Job	Run time
No "Apply suggestions from code review" Commits	4s
Submariner K8s API Code Generation	4m 38s
Commit Message(s)	22s
Go	6m 15s
Dependency Licenses	3m 8s
Markdown Links (modified files)	15s
Markdown	9s
Package Documentation	1m 0s
Protobuf Code Generation	44s
Shell	11s
Vulnerability Scanning	37s
YAML	12s
	17m 35s

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