Delete Calico IPPools when Submariner uninstalled #4298

Job	Run time
No "Apply suggestions from code review" Commits	4s
Submariner K8s API Code Generation	4m 24s
Commit Message(s)	14s
Go	6m 20s
Dependency Licenses	3m 27s
Markdown Links (modified files)	19s
Markdown	11s
Package Documentation	1m 3s
Protobuf Code Generation	46s
Shell	16s
Variant Analysis	6m 46s
Vulnerability Scanning	36s
YAML	10s
	24m 36s

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