Revert !54022 into 'master'

What does this MR do?

Reverts !54022 (merged) for gitlab-com/gl-infra/production#3858 (closed)

This MR broke widgets / comments / sidebar data because:

undefined method `admin?' for nil:NilClass

Slack conversation: (internal link only) https://gitlab.slack.com/archives/CETG54GQ0/p1614804997168200

Sentry: https://sentry.gitlab.net/gitlab/gitlabcom/issues/2511311/?query=is%3Aunresolved%20discussions

Kibana: https://log.gprd.gitlab.net/goto/01bc2f597bd37f25f28ab5580dc18348

Does this MR meet the acceptance criteria?

Conformity

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