zh,en: remove deprecated Helm charts (#2728) #7305

Job	Run time
check-control-characters	10s
check-file-encoding	10s
check-git-conflicts	8s
markdownlint	26s
verify-internal-link-anchors	19s
verify-internal-links	1m 37s
check-manual-line-breaks	9s
check-unclosed-tags	7s
	3m 6s

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