Revert "Merge branch 'add_duplicate_notes_note_trigram_index' into 'master'"
What does this MR do?
We need to revert !61430 (merged) due to a potential performance incident gitlab-com/gl-infra/production#4633 (closed)
We need to revert !61430 (merged) due to a potential performance incident gitlab-com/gl-infra/production#4633 (closed)