chore!: Remove old retention maxAge settings

[gabriellsh]

Proposed changes (including videos or screenshots)

Removes "soft" migration added here: https://github.com/RocketChat/Rocket.Chat/pull/32425/files#diff-d2a5af684ab8c456c39979a1bf9497783b7929d797fafca29ea6fdadde25c8c2

Issue(s)

Steps to test or reproduce

Further comments

[changeset-bot]

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Latest commit: ae5fc5d

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[dionisio-bot]

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[github-actions]

PR Preview Action v1.4.8
🚀 Deployed preview to https://RocketChat.github.io/Rocket.Chat/pr-preview/pr-33797/
on branch gh-pages at 2024-10-26 00:03 UTC

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.96%. Comparing base (a2da346) to head (ae5fc5d).
Report is 1 commits behind head on release-7.0.0.

Additional details and impacted files

@@              Coverage Diff               @@
##           release-7.0.0   #33797   +/-   ##
==============================================
  Coverage          74.96%   74.96%           
==============================================
  Files                481      481           
  Lines              21044    21044           
  Branches            5339     5339           
==============================================
  Hits               15776    15776           
  Misses              4636     4636           
  Partials             632      632           

Flag	Coverage Δ
unit	74.96% <ø> (ø)

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