Remove outdated comment

[thinkall]

Why are these changes needed?

Remove outdated comment.

Related issue number

Closes #1365

Checks

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• I've added tests (if relevant) corresponding to the changes introduced in this PR.
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[dannycg1996]

LGTM!
It would be good to expand the docs at some point to include these estimators, but that can be done as part of a separate issue.