remove user name (unused anyway) and email from cluster_info metrics #3854
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What this PR does / why we need it:
To make sure we don't spread personal information throughout many systems I removed the user name and email from the cluster info metrics. As far as I can tell, the user name is never set inside the cluster status anyway (so the label is always missing on our metrics), but the email was indeed used.
Does this PR introduce a user-facing change?: