Adjust logic to delete k8s namespace

Related-prod: #PROD-27350 (PROD:27350)
Related-prod: #PROD-27534 (PROD:27534)
Change-Id: I8b1a53e682363100dbe90db52fb446c8bfeef76d
(cherry picked from commit d8cd76616214f62bdcb06bca288efdcd5416e92c)
1 file changed