Revert "Merge branch 'hp-reg_db_cny' into 'master'"

What does this MR do?

Reverting !1314 (merged) because of SLO drop.

For gitlab-com/gl-infra/production#5803 (closed).

Author Check-list

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Reviewer Check-list

• Reviewed the diff jobs to confirm changes are as expected
• No changes shown in the diffs not associated with this MR - This may require a rebase or further investigation