[PM-28337] Remove feature flag

[trmartin4]

🎟️ Tracking

https://bitwarden.atlassian.net/browse/PM-28337

📔 Objective

Removes pm-23174-manage-account-recovery-permission-drives-the-need-to-set-master-password feature flag and flagged logic on the server. There was no flagged client-side logic for this feature.

⏰ Reminders before review

• Contributor guidelines followed
• All formatters and local linters executed and passed
• Written new unit and / or integration tests where applicable
• Protected functional changes with optionality (feature flags)
• Used internationalization (i18n) for all UI strings
• CI builds passed
• Communicated to DevOps any deployment requirements
• Updated any necessary documentation (Confluence, contributing docs) or informed the documentation team

🦮 Reviewer guidelines

• 👍 (:+1:) or similar for great changes
• 📝 (:memo:) or ℹ️ (:information_source:) for notes or general info
• ❓ (:question:) for questions
• 🤔 (:thinking:) or 💭 (:thought_balloon:) for more open inquiry that's not quite a confirmed issue and could potentially benefit from discussion
• 🎨 (:art:) for suggestions / improvements
• ❌ (:x:) or ⚠️ (:warning:) for more significant problems or concerns needing attention
• 🌱 (:seedling:) or ♻️ (:recycle:) for future improvements or indications of technical debt
• ⛏ (:pick:) for minor or nitpick changes

[github-actions]

Checkmarx One – Scan Summary & Details – 9533de50-8818-4601-ba52-d0d0da94281c

Great job! No new security vulnerabilities introduced in this pull request

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 53.63%. Comparing base (bd75c71) to head (039c0ae).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6698      +/-   ##
==========================================
- Coverage   53.63%   53.63%   -0.01%     
==========================================
  Files        1926     1926              
  Lines       85717    85704      -13     
  Branches     7686     7684       -2     
==========================================
- Hits        45977    45965      -12     
- Misses      37967    37969       +2     
+ Partials     1773     1770       -3     

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